Objective: To assess whether sleep quality (SQ) at baseline is associated with improvement in pain and disability at 3 months.
Materials And Methods: Four hundred twenty-two subacute and chronic patients with neck pain (NP) were recruited in 32 physiotherapy, primary care, and specialized centers. NP, referred pain, disability, catastrophizing, depression, and SQ were assessed through validated questionnaires, upon recruitment and 3 months later.