Sleep Tips

Sleep Hangover: Why Oversleeping Leaves You Groggy (2026)

Sleep Hangover: Why Oversleeping Leaves You Groggy

Quick answer A "sleep hangover" is sleep inertia - the grogginess, heavy-headedness and mental fog you feel right after waking, made worse by oversleeping or an irregular sleep schedule. It happens because you've woken mid-cycle, often out of deep sleep, and your circadian rhythm hasn't caught up with the clock. It usually clears within 15-60

Sleep Hangover: Why Oversleeping Leaves You Groggy (2026) Read More »

Scroll to Top