Some do, some don't. If girls are very warm at night then yes, I do anyway. But usually not.
Girls should sleep in cotton to prevent infections.
Depends on what's more comfortable.
I would think his underwear. A lot of young boys sleep in their underwear.
It is absolutely OK to sleep without pajamas or underwear. Nobody likes to feel restricted when they sleep.
Girls and boys underwear are very similar, except that girls' underwear does not contain the open seams that allow boys to urinate without lowering their briefs. Girls' underwear is often lighter, thinner, and smoother.
panties are underwear. also thongs or g strings are worn as underwear.
My little girl always sleeps in panties or bloomers, not just when she's "got her friend staying." This is because her nighties are quite short and she wants to make sure she's always decent. She always showers and puts clean underwear on the next day before school. Most girls will not sleep with a bra on, as they can be quite uncomfortable. It depends what they find more comfortable, usually.
All the guys in TH has said they sleep in their underwear.
their underwear
Yes!
Pantys
its called pantiloons