Is it normal to sleep with your tongue out?
Mostly.Normal for most people
Yes, it can be normal to sleep with your tongue slightly out. Your jaw and facial muscles relax while you sleep, and some people’s tongues naturally rest past their lips.
It can happen when your mouth falls open or your jaw relaxes during sleep. If you wake up comfortable and it’s just how you sleep, it’s usually no big deal—and not especially unusual.
If it comes with frequent loud snoring, gasping, or waking with a very dry mouth, mention those symptoms to a healthcare professional. Otherwise, your tongue is probably just getting comfy.