I do not need to wear anything to sleep.

Panties and nighty

Absolutely nothing for over a decade now. Just use fleece sheets in winter, and light sheet in summer. No more bunching up of sleepwear as I toss and turn, plus stay at better temperature for sleeping.

But mostly only in winter.

Nothing and have done so since mid/late teens

Nothing

Panties

Same here. And for the last few years I've expanded that to being nude full time at home. It has really cut down on doing laundry.

Metal cock ring.

i often wear a thong or joe snyder running shorts... i love combing my pubes with my fingers so minimal coverage is nice... haha

Thong or naked usually. I love the feeling of the thong touching my asshole and rubbing when I move around.

Slept naked whenever possible for the last forty years or so. Better that way but also makes life easier if I wake in the middle of the night and fancy a wank

T-shirt only. If I wear undershorts or sweat pants, my penis inevitably seems to get tangled up and I toss and turn until I strip down to just the T-shirt to be comfortable. If I sleep nude--no T-shirt--it feels cold. As I recall, years ago in the college dorm, roommate and I both wore T-shirts only.

Depending on my mood and circumstances, I would wear either tighty whiteys, gym shorts, cut-off jean shorts, a jockstrap (which would sometimes mysteriously end up twisted like a pretzel on the floor when I woke up), spandex briefs, a posing strap or g-string, a singlet, and almost always a t-shirt in cool weather, and often whatever roommates and guests requested, or nude like many other guys.

I sleep in the nude done this since I was a teenager, love the feeling of freedom to Jack off anytime I feel like..