Sweat pants, boxer briefs, old tee shirt, and socks(I has poor circulation). If I leave the house I shower and wear jeans(or shorts depending on the weather) , newer shirts, socks, shoes, and a fleece vest.
Outwear as underwear or going commando, and sometimes a shirt with short sleeves, but regularly bare chested.
I am wearing house clothing. Basically I have separate clothes; one for when I am going outside, and one for when I am at home. I don't specifically wear pajamas, but I think I might wear them as my house clothing without noticing it or getting bothered much about it.