Why do some people sleep with their eyes open?

My friend had this issue and ignored it for a while, thinking it was normal. But her eyes kept getting super dry and irritated, leading to infections. Turns out it was due to some nerve issue. Please, if you or anyone you know sleeps with their eyes open regularly, get it checked by a doctor. It's not just a quirk, it can cause eye damage over time.

Haha, it sounds like something from a horror movie, right? But seriously, it's called nocturnal lagophthalmos. Sometimes it's just how some people's eyelids are, or maybe super deep sleep. But it can make your eyes dry. Don't stress too much about it if it's not causing discomfort, but if it is, maybe get it checked just to be safe!

My doctor explained this is a condition called 'nocturnal lagophthalmos'. It can happen for several reasons: sometimes genetic, meaning their eyelids don't fully close. It can also be related to facial nerve damage, thyroid eye disease, or even just some sleeping positions. The main concern is usually chronic dry eyes and potential irritation because the eyes aren't getting lubricated during sleep.

I once saw my cousin sleeping with his eyes slightly open during a family trip, and it totally freaked me out! My aunt said he's always done that since childhood. He never complained of anything though, no dry eyes or anything. So I guess it's just normal for some people, but it does look very odd.