very loose cotton t-shirt and very loose cotton gym shorts in the summer
the same loose tee and long cotton sweatpants in the winter
don't like sleeping naked because (laugh at me and point all you want) I don't like my junk and butt rubbing all over the sheets......the cotton tee and pants are really comfortable snuggled under a down blanket and freshly-washed sheets on a cold night......
and I always sleep alone.....I don't even like it when somebody else is sleeping somewhere else in the house (worried I'll make a noise and bother them or worried they aren't comfortable or something).......I crank a white noise machine, drop a couple Costco OTC "sleep aids", turn off my phone, snuggle in, and usually sleep like a baby........