Rubbing feet together is a common habit for some people, especially when trying to sleep. Research suggests that this behavior may be a self-soothing mechanism triggered by stress or anxiety. The gentle tactile input from skin-on-skin contact stimulates endorphins, natural painkillers that can help reduce stress and anxiety. Foot rubbing also provides emotional regulation and serves as a coping mechanism for overwhelming emotions. While some people swear that it helps them sleep better, there is ongoing debate about its actual impact on sleep patterns.