almost always naked, sometimes when it's colder a shirt.
And sometimes I put on a diaper to sleep.

Always naked, with or without girlfriend (she too). Sometimes when alone, wearing some simple and safe-for-a-night light bondage gear. Ankle cuffs, some simple ropes.

Currently... my Dom requires me to be naked as it make makes me more horny.

-Alexis

I can only sleep naked. I hate wearing clothes to bed.

Always naked. Only time I don't is when I'm spending the night somewhere that I can't do that, like a family trip. Going to bed with clothes is uncomfortable. Plus I almost always masturbate before going to sleep, so it helps to already be naked.

Usually naked, sometimes I will tie a karada rope harness though.

Just panties. Always get super warm during the night.

Nude all the time. It doesn't matter where I am or who I'm with, I hate wearing clothes to bed.

Most of the time I wear a top and shorts.

Always naked, and sometimes without a duvet/cover

Always Just Boxers ^_^

Just saw this my post from 5 years ago, and there's a big shift actually. Now it's mostly butt naked or in boxers (thin and loose), occasionally in a jockstrap, and even less often something else (panties, thongs, speedos, ...).