Do you really know? Is oversleeping bad for you?
Oct 19, 2025
Ever felt hungover from too much sleep? That's called sleep drunkenness! The average adult needs 7 to 9 hours, but individual needs vary. Oversleeping can mess with your circadian rhythm, leading to daytime drowsiness. It might even be linked to conditions like Parkinson's and depression. Frequent oversleeping carries risks for memory and heart health. Discover tips for restoring a healthy sleep routine, from tracking your rest to enhancing bedtime habits, all in under 3 minutes!
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Oversleeping Feels Like A Hangover
- Oversleeping can feel like a hangover called "sleep drunkenness" with sluggishness and irritability.
- Your optimal sleep varies by genetics, age, and lifestyle, so nine hours isn't inherently bad.
Circadian Disruption Explains Daytime Drowsiness
- Oversleeping disturbs the circadian rhythm regulated by neurons in the hypothalamus.
- Cells signal to wake up even during extended sleep, producing daytime drowsiness.
Excess Sleep Could Signal Medical Issues
- Excessive sleep needs and chronic daytime sleepiness may indicate hypersomnia or underlying conditions.
- Causes include reactive hypersomnia, sleep apnea, narcolepsy, Parkinson's disease, and depression.