This is kind of a weird question, but funny, funny because it just reminded me of an incident I had years back with regards to the topic. Let me start by sharing it.
You know how life in college is - parties, hangouts and all sorts of adventures that sometimes leaves you stuck in a place for the night. This was one of those times. It got really late and I was left with no option but to pass the night in a friend's place. It was just the two of us, so we shared his bed. I guess I slept first.
I can't really remember what happened, but something woke me up in the middle of the night. And BOOM, there he was. At first i thought it was a dream, but realized it wasn't when I tried waking up again. This guy was completely naked next to me. Plus the lights were on and he had one of his legs touched against mine. I was shocked at the sight of him. Without thinking twice, I jumped off the bed and screamed, damn dude, what the h## is this? Are you trying to do something to me or what? I mean, it was a guy like me, but for God's sake am straight. Maybe I would have reacted differently if it was a girl . He too was shocked by my behavior, I guess because it was totally normal for him, he always sleeps naked. He tried explaining it to me, but I wasn't ready to listen to a thing he had to say. I grabbed my stuffs and left his place at that hour not minding how late it was. The next day, we met in class and laughed over it. Lol#
Well, as you can see from my experience with my friend above, am one of those people who don't enjoy sleeping with at least a short on. I can't say I have any good reason why, it just feels more comfortable for me sleeping with cloths on.