Part of Rotator cuff tendinopathy
How to sleep with rotator cuff pain, and what your nights tell you
Warning signs, and when to get help
How do I sleep with rotator cuff pain or tendonitis?
Two jobs, and neither of them is clever. The first is to get your weight off the painful side. The second is to stop the arm dangling, which means putting something under it that will still be there in the small hours. In practice that is the good side, with enough pillow in front of you that the sore forearm and elbow both land on something, or your back, with a cushion or folded towel under the upper arm so the elbow does not drop below the level of the shoulder. On your back, keep the hand down on your stomach or chest rather than letting it drift up beside your head, because an arm left behind the line of your body aches and, in a shoulder that has dislocated before, that is the position that can put the joint out.
Before you use either of those, two checks. If you have had a rotator cuff repair or other shoulder surgery, your surgical team sets your sleeping position and this page does not: whether the sling stays on at night, whether you may lie flat and whether the operated arm may rest across the front of your body are all theirs to answer, so ask them and read rotator cuff repair rehab for what that stage involves. The first set-up above puts the sore arm across pillows in front of you, which is the very thing some repair protocols restrict, so do not assume it is meant for you. The second check is pregnancy. From about 28 weeks the back set-up is out, and the detail is two paragraphs down.
New Zealand's Healthify, a national patient site, gives the first of those two almost word for word: if you have pain at night, try a pillow under the arm of the sore shoulder when you lie on the other side. It adds a third option that is worth trying when neither of ours works, which is a pillow behind your back so you can lie at an angle rather than square on either side, keeping your weight off the shoulder without lying flat.
From about 28 weeks of pregnancy the NHS advises going to sleep on your side rather than on your back, because it says sleeping on your back after that point can double the risk of stillbirth. So use the side-lying set-up, with the sore arm resting on a pillow in front of you, and leave lying on your back until after the birth. That rules out the angled option above as well, since a pillow behind your back tips you toward it. The NHS also says not to worry if you wake up on your back: settle onto your side again and carry on.
That is deliberately all the position advice this page gives. The detailed night routine, what to do with the arm on the side you are lying on, what to do when the shoulder wakes you in the small hours and the pillow set-ups are on sleeping with shoulder impingement and shoulder pain at night, which covers a shoulder that hurts in bed whatever the cause.
If the shoulder is stiff as well as sore, and turning the arm outward is clearly limited even when somebody else moves it for you, read how to sleep with a frozen shoulder instead. If this shoulder has come out of joint before, or it feels as though it could, the position that causes the trouble is the arm out to the side with the hand behind your head, and shoulder dislocation is written for an unstable shoulder rather than a painful tendon.
If you have had a rotator cuff repair or other shoulder surgery, the sling, how long you wear it at night and whether you may lie flat are set by your surgical team, and rotator cuff repair rehab is where that stage lives.
The rest of the page is about the question underneath that one: what your nights actually mean.
Why is rotator cuff pain worse at night?
Because that is how this problem behaves in most people, not because something is going wrong while you sleep. A few night patterns are not this condition behaving normally, and they are set out lower down and in the warning list. Khazzam and colleagues (2018) asked 391 people with rotator cuff disease, average age 57, and 91 percent reported pain at night. If yours wakes you, you are in the large majority.
The same study looked at what went with sleeping badly. In one or both of its two groups, the people with tendinitis and the people with tears, worse sleep quality was associated with higher pain scores, depression, female sex, low back pain, diabetes and a higher body mass index. It was measured at a single point in time, so it shows which things travel together and not which one causes which. Having one of them is not an explanation of your shoulder.
The 2025 physical therapy guideline's one remark on the subject is that pain can also occur during sleep or at rest when a shoulder is more irritable. That describes an irritable tendon rather than explaining the night.
Australia's healthdirect lists pain when sleeping on the affected side among the symptoms of a rotator cuff injury, so the symptom is recognized nationally even where the advice is not. Why the night is worse than the day for a cuff tendon is not settled by any source cited on this page. Physios prop the arm for a mechanical reason rather than a tested one. Left with nothing underneath it, the arm hangs off a tendon that is already sore, and it does that for hours instead of seconds.
Does sleeping on it cause the problem, or just hurt?
We found three studies that have looked at sleep position and the shoulder, and none of them can answer that question, for reasons set out further down this page. The one that asked it most directly is Kempf and Kongsted (2012), who asked 83 Danish adults with pain in one shoulder, recruited from ten chiropractic clinics, which side they slept on. Among those who slept on one side, 67 percent slept on the painful shoulder. They also found that 76 percent slept on the side away from their partner, which is the sort of detail that reminds you how many things decide which way somebody faces in bed.
Read the direction carefully, because it gets repeated backwards. The finding is that people with a sore shoulder tend to be lying on the sore one, not that lying on a shoulder makes it sore. The authors state in their own abstract that it is unknown whether the associations they found are causal, and they ended by suggesting that whether changing position helps is worth investigating.
So sleeping on it is not an accusation. Lying on a painful shoulder for hours is likely to make it hurt more, which is reason enough to move off it, and that is a different claim from blaming it for the problem. How load affects a cuff tendon in the first place is a daytime question, and the worst exercises for a rotator cuff problem is where that is sorted out.
Does a bad night mean the tendon is torn?
No. This is the question that brings most people to a page like this one, and the evidence answers it cleanly for once.
In Khazzam and colleagues' 391 patients, 274 had tendinitis and 117 had tears, and the state of the rotator cuff did not correlate with worse shoulder pain or with worse sleep quality. Bad nights are not a tear signal. Running the logic the other way, a tear does not have to announce itself at all: when Sher and colleagues scanned 96 people with no shoulder symptoms in 1995, 34 percent of them had a cuff tear, and 54 percent of the 46 who were over 60.
There is one place where the diagnosis does show up in the nights, and it is not the cuff. Mulligan and colleagues (2015) compared 343 patients with shoulder problems and found sleep quality significantly worse in the frozen shoulder group than in the other shoulder diagnoses they measured, which included subacromial impingement, while the pain scores between the diagnostic groups did not differ significantly. Very poor sleep with a shoulder that is also stiff in every direction points more toward frozen shoulder than toward a cuff tear.
Now the part that matters more than any of it. Your nights cannot rule a tear in, and they cannot clear a shoulder that is going the wrong way either. A shoulder that hurts in bed but is working in the day is behaving normally. An arm that has been weak since a fall or a sudden pull is a different matter and needs medical advice the same day, with the story of how it happened and the fact that the arm has been weak since it did. Weakness that is getting worse, new numbness, or pins and needles that do not go away are the same day too, whatever the nights are doing. Rotator cuff tear or tendonitis sets out what separates the two, and why pain alone cannot tell them apart.
What the guidance does and does not say about sleeping position
This is the honest context for every piece of sleep advice on this subject, including the set-ups at the top of this page.
Neither of the two clinical practice guidelines cited below gives a sleeping position, or mentions sleep as a problem to manage at all. The 2025 physical therapy guideline contains the word sleep once in its body, in background, and the word nocturnal only in the title of a paper it cites, with insomnia nowhere at all. Part 1 of the 2026 Dutch update contains sleep, nocturnal, night, insomnia and bed zero times each. Both full texts were read for this page on 5 November 2026.
The national patient pages are not uniform. nhs.uk's shoulder pain page and Australia's healthdirect describe the problem without naming a position to sleep in, and healthdirect lists pain when sleeping on the affected side as a symptom rather than something to set up for. New Zealand's Healthify is the exception, and it is the only national page of the three that tells you what to do in bed: a pillow under the arm of the sore shoulder when you lie on the other side, or a pillow behind your back so you can lie at an angle. All three were read on 5 November 2026.
No study we could find has tested whether changing your position helps. All three of the studies on sleep position and the shoulder are cross-sectional or a case series, so none of them can say which came first. Kempf and Kongsted found the association in their 83 patients in 2012 and then put the treatment question up for somebody else to answer. Holdaway and colleagues asked 761 workers in 2018, and the position expected to be the worst for the shoulder came out, unexpectedly, with less shoulder pain rather than more, which the authors suggest may be because people who get shoulder pain learn to avoid it. Richards and colleagues reported in 2024 that 52 of 58 patients with a significant cuff tear were side sleepers, a case series with nobody to compare them against, so there is nothing in it to tell you whether 52 of 58 is more than you would find in people without a tear.
That absence does not make position irrelevant. It means the question has not been measured, which is a different thing, and it is why this page gives you set-ups to try instead of a prescription. Use whichever one lets you sleep, inside the two checks at the top of this page: your surgical team's rules if you have had a repair, and side-lying rather than your back from about 28 weeks of pregnancy.
How long do the nights stay bad?
Usually not as long as the rest of it, and that is genuinely good news to go to bed on. The rotator cuff tendinopathy program sets out the order recovery tends to arrive in, and night pain is the first thing that improves on it, before reaching to chest height and well before anything overhead.
That makes the nights a reasonable progress marker, used carefully. Night pain that is slowly getting less frequent across a month is the program working, even while the daytime pain is still up and down. Night pain that comes back after a few quiet weeks usually means something in the daytime has gone up, and the week before it is where to look rather than the mattress. If you have had a cuff repair, do not read it that way: pain that had been settling and is building again goes to your surgical team, and the paragraphs below say how fast.
Do not use a single bad night as data, though. Everyone's shoulder has them, and reading one as a setback is how people talk themselves out of a program that is working. That holds for a night that was simply more painful than usual. A night with something new in it is a different question. A pop or a tearing feeling, an arm that will not lift afterward, or a shoulder that has gone hot and swollen are on the warning list below with their own timing, and none of them waits for a pattern.
Nights that have not improved at all are a different matter, and they are worth an appointment rather than another pillow. The NHS puts shoulder pain that is getting worse, or that has not improved after 2 weeks, at a doctor or a physiotherapist, and Healthify puts night pain that stops you sleeping there with no minimum number of nights attached. If the nights are no better after weeks of a program you have actually been doing, go back and ask whether the shoulder needs a scan or a specialist opinion. That question belongs to the person examining you, not to the mattress.
When night pain needs a doctor rather than a different pillow
Most night pain with a cuff shoulder is the condition doing what it does. A short list is not, and no position will fix any of it.
Pain at night or at rest that is constant, that no rest or change of position eases at all, and that keeps getting worse needs checking within a few days. If you have had cancer, now or in the past, or you are losing weight without trying, that becomes sooner, within a day or two, and mention it, and it applies even if the pain is not getting worse. If you are being treated for cancer now, contact your cancer team the same day. A shoulder that is hot, red and swollen, or shoulder pain with a fever, means going to an emergency department the same day. Shoulder or arm pain that comes with shortness of breath, sweating or feeling sick can be a heart attack, and that means calling emergency services straight away.
The same goes for chest pain in the night, which is one of the ways a heart attack wakes somebody who thinks the problem is a shoulder. If chest pain, pressure or tightness does not ease quickly when you rest, spreads to your arm, neck, jaw, stomach or back, or comes with sweating, feeling sick, feeling light-headed or being short of breath, call emergency services straight away, as this can be a heart attack. If it eases quickly and none of these happen, get medical advice the same day, and do not exercise again until you have been checked. If you faint while exercising, call emergency services, even if you feel fine again quickly.
Recovering from a shoulder repair changes which nights count, and this is the one place where the reassurance at the top of this page does not reach. Broken sleep is part of the first weeks after that operation, so the signal is not a bad night, it is a direction. Night and rest pain that had been settling and is now building again, in a shoulder that is hot, red or swollen or with a fever, means contacting your surgical team straight away, day or night. An arm that has quietly lost lift or strength it had already gained is the same team the same day, with or without much new pain, because a repair can pull off the bone without a pop and that is usually how it shows. Both of those are in the warning list below, and neither of them is a pillow problem.
There is one more reason to make an appointment that is not on any warning list, and it is a reasonable one. New Zealand's Healthify names pain at night that stops you sleeping, possibly worse than during the day, as a reason to see a doctor, an urgent care doctor or a physiotherapist. Broken nights are worth an assessment in their own right, and Healthify puts no minimum number of them on it, so there is nothing to wait for. That holds even when nothing in the warning list below applies to you, because sleep is not a luxury you earn by being bad enough.
The warning list below gives every sign with how fast to act on it. Read it rather than assuming the night pain section covers all of them.
One sign in the list below appears three times, at three different speeds. Pain at night or at rest that is constant, that no rest or change of position eases at all, and that keeps getting worse is a same-day matter if you are being treated for cancer now, a within-a-day-or-two matter if you have had cancer at any time or are losing weight without trying, and otherwise needs checking within a few days. If you cannot tell which of those you have, treat it as the more urgent one.
Related exercise programs
Warning signs
Get emergency help now
- Emergency: chest pain or tightness, which may spread to your arm, neck or jaw, or shoulder or arm pain that comes with shortness of breath, sweating or feeling sick. This can be a heart attack. Call emergency services straight away.
- Emergency: the shoulder is hot, red and swollen, or you have a fever or feel unwell. This can be a joint infection, which needs treatment quickly. Go to an emergency department the same day, and call emergency services if you feel very unwell.
- Emergency: the shoulder feels as if it has slipped out of place, looks a different shape or suddenly locks so you cannot move the arm, or the pain is severe after a fall or an injury. Go to an emergency department straight away, without driving yourself, and do not try to put the shoulder back in yourself.
- Emergency: your arm, hand or fingers turn cold, pale, blue or gray compared with the other side. Call emergency services or go to an emergency department straight away, and do not drive yourself. The blood supply to the arm may be blocked.
Get help now, day or night
- Since your operation, the shoulder is hot, red and swollen, you have shoulder pain with a fever, or the redness, warmth, swelling or pain in your shoulder is not getting better or is getting worse, for example the shoulder pain keeps building both when you move and when you rest. This can be an infection in the shoulder joint. Contact your surgical team straight away, day or night, or the ward you went home from, and if you cannot reach them, go to an emergency department the same day.
Get help today
- Same day: sudden, very bad shoulder pain, or you suddenly cannot lift or move your arm at all. Get medical help the same day.
- Same day: the pain started after a fall, a pull or another injury, especially if the arm has been weak since, for example you cannot lift it out to the side or hold it up. This can be a broken bone or a torn tendon. Get medical advice the same day, and say how it happened and that the arm has been weak since, because UK shoulder surgeons advise urgent referral for a rotator cuff tear caused by an injury.
- Same day: a sudden pop or tearing feeling in the shoulder that brings sharp pain, new weakness or trouble lifting the arm. Stop and contact your surgical team the same day, or get medical advice the same day if you have not had surgery.
- Same day: since your operation, the arm has lost movement or strength it had gained, so lifting or turning it is weaker or much more painful than it was a week or two ago, or you notice clicking, grating or a new catch in the shoulder. A repair can pull off the bone without a pop, and when it does the usual sign is lift that was coming back and has gone again, sometimes with little new pain. Rest the arm, leave out any exercise that makes it worse, contact your surgical team the same day and ask whether the repair needs checking. If you cannot reach them, get urgent medical advice.
- Same day: pins and needles or numbness in the arm that does not go away, no feeling in part of the arm, or weakness that is getting worse. Get medical advice the same day. For pain spreading down the arm from your neck, ask for an urgent appointment with your doctor. If one side of your face or body suddenly goes numb or weak, or your speech becomes slurred or muddled, call emergency services, even if it goes away.
- Same day: severe pain in both shoulders that has come on recently. Get medical advice the same day.
- Same day: you are over 50 and have aching and stiffness in both shoulders, often in the neck or hips too, that is worst in the morning and lasts more than 45 minutes after you get up. This can be an inflammatory condition (polymyalgia rheumatica) rather than a rotator cuff problem. If you also get a new headache, pain or tenderness at your temples or on your scalp, or jaw pain when you eat or talk, get medical advice the same day, and if your vision changes, call emergency services. Even without those extra signs, see your doctor within a few days about the aching and stiffness.
- Same day: pain at night or at rest that is constant, that no rest or change of position eases at all, and that keeps getting worse. If you are being treated for cancer now, contact your cancer team the same day.
Book an appointment
- Within a day or two: new shoulder pain and you have had cancer, now or in the past, or you are losing weight without trying. See your doctor within a day or two and mention it.
- Within a day or two: pain at night or at rest that is constant, that no rest or change of position eases at all, and that keeps getting worse. If you have had cancer, now or in the past, or are losing weight without trying, see your doctor sooner, within a day or two, and mention it. This applies even if the pain is not getting worse.
- Within a few days: night pain is common with this condition, but get checked within a few days if the pain is constant, no rest or change of position eases it at all, and it keeps getting worse.
- Within 2 weeks: shoulder pain that is getting worse, or that has not improved after 2 weeks, or it is very difficult to move your arm or shoulder. Book an appointment with a doctor or physiotherapist, as the NHS advises.
- Within 2 weeks: pain at night that stops you sleeping, which may be worse than during the day. Book an appointment with a doctor, an urgent care doctor or a physiotherapist, as Healthify New Zealand advises.
Common questions
What is the best sleeping position for rotator cuff pain?
No trial we could find has tested one, so there is no best position in the research sense, and what follows is what physios set up in clinic. It is usually the good side, with the sore arm lying across a pillow in front of you, or your back with a cushion keeping the upper arm level instead of letting the elbow drop, with the hand down on your stomach rather than up by your head. If you have had a rotator cuff repair or other shoulder surgery, your surgical team sets your position and this page does not, and the first set-up is the one some repair protocols restrict, so ask them before you use it. New Zealand's Healthify gives the same first set-up, a pillow under the arm of the sore shoulder when you lie on the other side, and adds a third worth trying: a pillow behind your back so you can lie at an angle without putting your weight on the shoulder. From about 28 weeks of pregnancy the NHS advises going to sleep on your side rather than on your back, because it says sleeping on your back after that point can double the risk of stillbirth. So use the side-lying set-up, with the sore arm resting on a pillow in front of you, and leave both lying on your back and the angled version until after the birth. The NHS also says not to worry if you wake up on your back: settle onto your side again and carry on. The full set of positions and pillow arrangements is on shoulder pain at night, which is worth reading before you rearrange the bed.
How do I sleep with rotator cuff tendonitis?
The same way as with any painful cuff shoulder, because tendonitis and tendinopathy are the same problem under two names. Take your weight off that shoulder, and park the arm on something rather than leaving it to dangle all night. Neither of the two clinical practice guidelines cited on this page gives any sleep advice at all, which is worth knowing before you weigh up any tip on this subject, including ours. If you have had a rotator cuff repair or other shoulder surgery, the sling, how long you wear it at night and whether you may lie flat are set by your surgical team, and rotator cuff repair rehab covers that stage.
Why is rotator cuff pain worse at night?
Night pain comes with this problem, and it is one of the first things people mention. Khazzam and colleagues (2018) found nocturnal pain in 91 percent of 391 patients with rotator cuff disease, average age 57. In one or both of its two groups, worse sleep quality went with higher pain scores, depression, female sex, low back pain, diabetes and a higher body mass index, although the study was a snapshot and so cannot say which came first. The 2025 physical therapy guideline notes only that pain can also happen during sleep or at rest in shoulders that are more irritable. A few patterns of night pain are not about position. One is pain at night or at rest that is constant, that no rest or change of position eases at all, and that keeps getting worse. Another is an arm that has been weak since a fall or a sudden pull, which needs medical advice the same day whatever the nights are doing. The warning list on this page gives each of them its timing.
Can I sleep on the side with the rotator cuff pain?
Most people cannot while the shoulder is irritable, and plenty of people find that is the first thing that improves. Kempf and Kongsted (2012) found that among 83 adults with pain in one shoulder, 67 percent of those who slept on one side slept on the painful one, and the authors said plainly that it is unknown whether that association is causal. So lying on it is not proof that you have damaged anything, and it is not something to force either. Sleeping with shoulder impingement covers when you can expect to get back onto that side. If you have had a repair, that timing is your surgical team's and not that page's.
Does a bad night mean my rotator cuff is torn?
No, and the study that looked hardest at this says so: in 391 people with rotator cuff disease, 274 with tendinitis and 117 with tears, the state of the cuff did not correlate with worse shoulder pain or with worse sleep quality (Khazzam and colleagues, 2018). A tear also does not have to hurt at all. When Sher and colleagues scanned 96 people with no shoulder symptoms in 1995, 34 percent had a cuff tear. The nights cannot clear a shoulder that is going the wrong way, though. The pain started after a fall, a pull or another injury, especially if the arm has been weak since, for example you cannot lift it out to the side or hold it up. This can be a broken bone or a torn tendon. Get medical advice the same day, and say how it happened and that the arm has been weak since, because UK shoulder surgeons advise urgent referral for a rotator cuff tear caused by an injury.
References
- Khazzam MS, Mulligan EP, Brunette-Christiansen M, Shirley Z. Sleep quality in patients with rotator cuff disease. Journal of the American Academy of Orthopaedic Surgeons. 2018;26(6):215-222. https://doi.org/10.5435/JAAOS-D-16-00547
- Mulligan EP, Brunette M, Shirley Z, Khazzam M. Sleep quality and nocturnal pain in patients with shoulder disorders. Journal of Shoulder and Elbow Surgery. 2015;24(9):1452-1457. https://doi.org/10.1016/j.jse.2015.02.013
- Kempf B, Kongsted A. Association between the side of unilateral shoulder pain and preferred sleeping position: a cross-sectional study of 83 Danish patients. Journal of Manipulative and Physiological Therapeutics. 2012;35(5):407-412. https://doi.org/10.1016/j.jmpt.2012.04.015
- Holdaway LA, Hegmann KT, Thiese MS, Kapellusch J. Is sleep position associated with glenohumeral shoulder pain and rotator cuff tendinopathy: a cross-sectional study. BMC Musculoskeletal Disorders. 2018;19(1):408. https://doi.org/10.1186/s12891-018-2319-9
- Richards DP, Miller DL, MacDonald ED, Stewart QF, Miller SD. Rotator cuff tears are related to the side sleeping position. Arthroscopy, Sports Medicine, and Rehabilitation. 2024;6(2):100886. https://doi.org/10.1016/j.asmr.2024.100886
- Sher JS, Uribe JW, Posada A, Murphy BJ, Zlatkin MB. Abnormal findings on magnetic resonance images of asymptomatic shoulders. Journal of Bone and Joint Surgery (American). 1995;77. https://pubmed.ncbi.nlm.nih.gov/7822341/
- Desmeules F, Roy JS, Lafrance S, et al. Rotator cuff tendinopathy diagnosis, nonsurgical medical care, and rehabilitation: a clinical practice guideline. Journal of Orthopaedic and Sports Physical Therapy. 2025;55(4):235-274. https://doi.org/10.2519/jospt.2025.13182
- Lambers Heerspink FO, Veen EJD, Dorrestijn O, et al. Update of guideline for diagnosis and treatment of subacromial pain syndrome: a multidisciplinary review by the Dutch Orthopedic Association. Part 1: preventive measures, diagnostics, and non-surgical treatment of subacromial pain syndrome. Acta Orthopaedica. 2026;97:91-98. https://doi.org/10.2340/17453674.2026.45365
- healthdirect. Rotator cuff injury. https://www.healthdirect.gov.au/accidents-and-injuries/rotator-cuff-injury
- Healthify He Puna Waiora. Shoulder pain. https://healthify.nz/health-a-z/s/shoulder-pain
- NHS. Shoulder pain. Page last reviewed 22 May 2023. https://www.nhs.uk/symptoms/shoulder-pain/
- NHS. 27 weeks pregnant: the best sleeping positions during pregnancy. Best Start in Life week by week guide. https://www.nhs.uk/best-start-in-life/pregnancy/week-by-week-guide-to-pregnancy/2nd-trimester/week-27/
- NHS. Heart attack. Page last reviewed 31 March 2026. https://www.nhs.uk/conditions/heart-attack/
Written and checked by the PocketPhysio editorial team. Last updated 2026-11-05.
This page is general education, not a diagnosis or a personal treatment plan. See a physiotherapist or doctor for advice about your own situation.