At home always sleep naked. If I'm not at home and have sex, I usually sleep naked. When traveling etc. I usually sleep in panties and tank top.
Living with the parentals, sleeping naked can be a pain - though on the odd occasion where they go somewhere else overnight (like a cruise or whatever), I do sleep naked.
I've slept naked for most of my life. Like now I just got up, signed in, and sitting here naked before I get ready for work.
Definitely in the buff. Only on very cold nights will i wear flannel pjs. Or after a very good night i might be wearing her panties .
I have a roommate now, so I haven't in a while, but when I'm alone or have my own place I do about 50% of the time. Only problem is that even if I don't start out with the intention to do so, I always end up rubbing my clit, then breaking out a vibrator, then just having a super long masturbation session - my vagina is just so accessible when I'm not wearing anything.
Never. I feel too awkward if I don't have pajamas on. Though, if it's hot, I'll wear just a pair of skivvies.