Weird question, i know but.. I've noticed that a lot of my guy friends (and a lot of people on TV shows and movies) sleep without a shirt on and I really never knew why.. Is it because people find it more comfortable that way? one of my friends even told me he sleeps with nothing on, and when I heard that, I was like, what in the world? Is that normal? I just sleep with a t shift and shorts, because I find that comfy. I'm guessing regardless of what people wear when sleeping,m the reason is going to be "because they find that comfy" so yea, what do you guys wear when sleeping?