Started sleeping naked this year and haven't looked back since. I used to only sleep butt-naked if I'd just had sex and would otherwise wear my boxers to bed. But I've found it much more comfortable, body temperaturewise, to sleep all-nude and now can't stand to wear anything anymore. If during the day I find the time to take a cat nap, I'll take it all off just as well. But it's less 'sexy' to me than just so much more comfortable. I don't wear shoes inside and don't see why I would wear underwear to bed, either.
I definately wear less to bed on warm nights - hate the feel of bed clothing clinging to me all over.
Five year thread? Wow. I sleep naked, although I occasionally cuddle into the comforter with some clothes in cold weather. Should I drift off, I will wake and get the clothes off. When I'm staying with others, same applies. Something that passes as jammies, and off they go when I retire for the night.