Association Between the Side of Unilateral Shoulder Pain and Preferred Sleeping Position: A Cross-Sectional Study of 83 Danish Patients

Patients with unilateral shoulder pain were more likely to sleep on the side of the painful shoulder than on the pain-free side and reported to turn away from their partners in bed. It is unknown whether the observed associations are causal, but it is worth investigating whether a change in sleeping position has a positive effect on patients with shoulder pain and if this can be achieved simply by changing side of sleeping in bed.