system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5: Why do we end up more tired from sleeping longer than recommended amounts?

Why is it when you sleep for 10-12 hours you end up more tired throughout the day than if you had 8 hours of sleep?
gpt
Three main reasons: 1. If you’re sleeping 8 hours normally and one day decide to sleep for longer, you end up disrupting your natural circadian rhythm, which leaves your body in a jet lag state because it’s a bit confused. Keep a consistent schedule for better sleep. 2. Waking up later might mean you wake up at a different sleep stage. You might be waking up in a deep sleep state instead of the usual rem or light sleep stage you normally are used to. Your body cycles through these stages every hour and a half on average. 3. If you’re sleeping for too long it might be a health issue like sleep apnea preventing you from getting a good night sleep. Your body isn’t getting the rest it needs.