Do you think gay men are more likely to sleep naked than straight men?
Only asking because the more reliable surveys estimate that about 30% of US men sleep nude.
I don't have any hard data, but I can tell you that most straight guys I've known where something to bed only because their wives want them to.
Surveys: If wives were present when the guys answered, most would have responded the way they think their wives would want them to.
I only know two gay men who do not sleep nude. One stated that he knew he was "weird" (his word) for doing so and the other only wears a nightshirt (really!) if he's sleeping alone.
I'd guess a higher percentage of gay men sleep in the buff simply because they're less likely to have someone telling them to put something on.
IMO, it's not a gay thing, it's a guy thing. Gay guys are more likely to sleep, socialize, & do stuff around the house in the buff and go to nude beaches simply they're less likely to be around people telling them they need to wear clothes.