Why does my shoulder hurt when I sleep?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Shoulder pain while sleeping is most commonly caused by rotator cuff problems—a group of muscles and tendons that stabilize the shoulder joint. Common culprits include rotator cuff tendinitis, bursitis, impingement, or tears, which often worsen at night due to sleeping position and reduced blood flow to the tendons.

Other potential causes include frozen shoulder, arthritis, or referred pain from the neck. While nighttime shoulder pain can significantly disrupt sleep quality, many cases improve with rest, gentle stretching, and conservative care.

Because shoulder pain has many possible causes—some minor, some requiring medical attention—understanding your specific symptoms is the essential first step. A free, instant, online symptom check can help you identify likely causes based on your unique symptoms and guide you on whether home care is enough or if you should see a doctor. It takes only a few minutes and gives you clarity so you can take the right next step with confidence.

Reviewed for medical accuracy: 07/20/2026

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Explanation

Shoulder pain while sleeping is commonly associated with problems in the rotator cuff. The rotator cuff is a group of muscles and tendons that help move and stabilize your shoulder. When there is a tear or other issue in the rotator cuff, it can lead to pain, especially at night.

Why does this happen?

Rotator Cuff Tear: Studies show that a tear in the rotator cuff can cause significant discomfort and disrupt sleep. This is because lying down may put pressure on the affected area, increasing pain.
Sleep Disturbances: Many people with rotator cuff issues report trouble sleeping due to the pain. This can lead to waking up frequently or having difficulty falling asleep.

What can you expect?

Although sleep disturbances are common with rotator cuff problems, most people notice that their sleep patterns improve over time. This improvement can occur naturally or with treatment.

If you experience persistent shoulder pain, try Ubie's free AI symptom checker to help identify potential causes and determine whether you should consult a healthcare provider for proper assessment and treatment.

(References)

Austin L, Pepe M, Tucker B, Ong A, Nugent R, Eck B, & Tjoumakaris F. (2015). Sleep disturbance associated with rotator cuff tear. The American journal of sports medicine, 25776185.
Daher M, Lopez R, Covarrubias O, Boufadel P, Fares MY, & Abboud JA. (2024). Sleep disturbances in rotator cuff pathology: insights into .... Clinics in shoulder and elbow, 38738327.
Dolan MT, Lowenstein NA, Collins JE, & Matzkin EG. (2022). Majority of patients find sleep patterns return to normal 6 .... Journal of shoulder and elbow surgery, 35219845.

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