Is it normal to sleep in only your underwear?
Yep.Totally normal
Yes—sleeping in just your underwear is totally normal. Some people find it more comfortable or cooler than wearing pajamas, while others prefer more coverage.
Absolutely. What you wear to bed is mostly a comfort and temperature preference: some people like the freedom of fewer layers, and some feel cozier in pajamas or nothing at all.
As long as you’re comfortable and your underwear is clean, there’s no special rule about how much you need to wear to sleep. People have all kinds of bedtime outfits—including this one.