Nope. I always sleep in a shirt and panties at the very least. Unless our A/C goes out, in which case I might just sleep in my panties and hope no one tries to wake me up in the morning because they'll be getting an eye-full.
If someone is sleeping in the room with me, with some exception, then I usually wear shorts to bed as well as what I already wear.
But for the most part, just a t-shirt and panties.