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  1. Oversleeping: Common Causes and How To Stop

    Jun 15, 2023 · In most cases, people who oversleep (hypersomnia) are getting nine or more hours of sleep a night, for weeks at a time, and are still waking up feeling tired and out of sorts.

  2. Oversleeping: How Much Sleep Is Too Much? - Sleep Foundation

    Jul 10, 2025 · Most adults need between seven and nine hours of sleep per night, but regularly sleeping more than nine hours is considered oversleeping. While getting extra rest occasionally isn’t usually a …

  3. Oversleeping: 7 Causes, Effects, and Treatment - Health

    Mar 6, 2025 · Sleeping too much is called oversleeping. Common causes of oversleeping are shift work, illness, depression, medications, or sleep disorders.

  4. Oversleeping: Bad for Your Health? - Johns Hopkins Medicine

    Sleep needs can vary from person to person, but in general, experts recommend that healthy adults get an average of 7 to 9 hours per night of shuteye. If you regularly need more than 8 or 9 hours of sleep …

  5. Oversleeping: Causes, Health Risks, and More

    Mar 26, 2024 · Oversleeping, also known as “long sleeping,” is when you regularly sleep for more than 10 hours per day. People are often concerned about not getting enough sleep. However, …

  6. Oversleeping Side Effects: Is Too Much Sleep Harmful? - WebMD

    Oct 8, 2024 · Multiple studies have found that people who sleep nine or more hours a night have significantly higher death rates than people sleeping seven to eight hours a night.

  7. How Much Sleep Is Too Much? Hidden Dangers of Oversleeping

    Sep 12, 2025 · So, how much sleep is too much sleep? For most adults, anything consistently over 9–10 hours per night may be considered excessive—especially if it comes with fatigue, low mood, or other …

  8. Scientist reveals how much sleep is too much sleep

    Aug 28, 2025 · Recent reports suggest sleeping more than nine hours could be worse for your health than sleeping too little

  9. Oversleeping: How Much Sleep Is Too Much? - Welltech

    Dec 13, 2024 · If you regularly sleep for more than 9–10 hours and still feel fatigued, consult a healthcare provider. Addressing the root cause is the first step toward reclaiming restorative, …

  10. Are You Sleeping Too Much? Signs, Outlook, and Complications

    Apr 8, 2022 · Experts define oversleeping as sleeping more than nine hours in a 24-hour period. You’ve likely done that before when recovering from a stressful work week, or a busy travel weekend, or if …