Help! Always wake up super sweaty?

Okay so my boyfriend and I usually spend the night with each other 2-3 times a week. Obviously I like sleeping in the same bed as him but no matter what we do, we still get SO HOT during the night. We turn the air way down, only use the sheets, wear barely anything, we even can sleep on opposite sides of the bed and I STILL wake up drenched in sweat. I hate it because it feels gross and I just don't feel cute. He is always super warm (I feel like most guys are)  Do you guys have any tips on how to not wake up drenched in sweat and just all over gross when I spend the night with him? Thank you!