Buy a better set of headphones (i'm not a Bose fan). I used to have problems with my ears sweating, or my head hurting after wearing a pair of closed headphones. About 20 years ago I sprung for a pair of HD545, which were light, open, and the foam/felt surfaces never resulted in discomfort. I could wear those headphones for 12 hours straight.

I've since moved on to other headphones, but I always consider if the headphone is to tight, heavy, or the ear cushions are cheap pleather that makes my head sweat.