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Results 1 - 1 of 1 for Delayed sleep phase disorder
  1. Healthy Sleep (National Library of Medicine)  
    ... want to sleep later in the morning. This delayed sleep-wake rhythm conflicts with the early-morning start ... have continued trouble sleeping. You may have a sleep disorder, such as insomnia or sleep apnea. In some ...
    https://medlineplus.gov/healthysleep.html - Health Topics