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  1. Delayed sleep phase disorder - Wikipedia

    Delayed sleep phase disorder (DSPD), more often known as delayed sleep phase syndrome and also as delayed sleep–wake phase disorder, is the delaying of a person's circadian rhythm …

  2. Delayed sleep phase - Symptoms and causes - Mayo Clinic

    Delayed sleep phase is a sleep disorder that affects the internal clock, known as circadian rhythm. People with this sleep disorder have sleep patterns that are delayed two hours or more from …

  3. Delayed Sleep Phase Disorder

    Feb 14, 2024 · Delayed sleep phase disorder (DSPD), or delayed sleep-wake phase syndrome, is characterized by the inability to fall asleep, difficulty waking up on time, and, in some cases, …

  4. Delayed Sleep Phase Syndrome (DSPS): Symptoms & Treatment

    Oct 13, 2023 · Delayed sleep phase syndrome (DSPS) is a condition that affects your ability to fall asleep and wake up on time. The delay in your sleep schedule is off by at least two hours.

  5. Delayed Sleep Phase Syndrome - Stanford Health Care

    Delayed sleep phase syndrome (DSPS) is a disorder in which a person’s sleep is delayed by two hours or more beyond what is considered an acceptable or conventional bedtime. The delayed …

  6. DELAYED SLEEP PHASE DISORDER - DSPD Q&A - Circadian Sleep Disorders

    Aug 11, 2025 · What is Delayed Sleep Phase Disorder? Delayed Sleep Phase Disorder (DSPD), also known as Delayed Sleep Phase Syndrome (DSPS), is a neurological sleep disorder in …

  7. Delayed Sleep Phase Syndrome: Symptoms, Causes, and More - Health

    Oct 2, 2025 · With delayed sleep phase syndrome (DSPS), your sleep cycle is delayed by two or more hours. You can maintain a consistent bedtime routine to help prevent DSPS. DSPS is …

  8. What Is Delayed Sleep Phase Syndrome? - Sleep Care Online

    Aug 14, 2025 · One common sleep disorder is delayed sleep phase syndrome (DSPS). This condition prevents people from falling asleep at their normal bedtime. Delayed sleep means …

  9. What Is Delayed Sleep Phase Syndrome? - Verywell Health

    Mar 27, 2024 · What is the explanation for staying up late and sleeping in? Learn the causes, symptoms, and diagnosis of delayed sleep phase syndrome.

  10. Delayed Sleep Phase Syndrome (DSPS): Signs, Causes

    Jul 25, 2025 · Explore Delayed Sleep Phase Syndrome (DSPS), a circadian sleep disorder impacting your natural rhythm. Gain insight and find strategies for a balanced sleep…