Try good half-open cans like Beyerdynamic DT880, i can wear them for hours. I like the sound better than fully open Headphones, compared them to the DT990s. With my closed DT770 my ears get uncomfortably warm pretty fast.
I have all sorts of headphones. Open backs, half-open, closed backs, some of them are absolutely amazing.
I'd still mostly rather not wear anything most of the time. This is especially true those times when the laptop speakers prove the most useful - when I'm just chilling out, possibly in bed. I'd also rather not have to deal with wires during those times.
My main issue is not so much warmth but mostly the fact that my ears are covered, simple as that. I'm not neurotic about it but I prefer to have them open. Sometimes I'll take the sound quality hit and wear my bone conducing headset over wearing great sounding headphones.
