I was a first year college student and took potluck with a room mate. He was a nudist thru and thru, He never wore clothes when ever he was around on the floor. He converted me to a nudist and sleeping nude along with being nude on the dorm floor. Our being comfortable with nudity on the floor allowed others to due the same.
I started sleeping naked at 14-15 and from the 1st time slept NAKED every night since and I'm 64. Never had any pjs only underwear and about the same time stopped wearing underwear also. Around 16 -17 threw every pair of underwear I owned in the trash and have never worn a stitch since. Can't imagine sleeping any other way that completely naked. My dad always slept naked and when I was a kid was very comfortable running around the house naked - so I had a great role model for becoming a nudist and always living naked. naked man
I started sleeping naked when I was in Texas back in 1991. I have been sleeping naked almost every night since 2014 because my partner sleeps naked. It feels great. If I with someone who is uncomfortable with me being naked I keep my underwear on. I prefer to sleep naked though.