Ohyeah, I'm cool with punting him out of bed/injuring him. He won't actively try anything pervy and aside from if he has to defend himself there probably won't be a fight. There will be too much confusion/embarrassment for him to be enough of an ass to actually start/end a fight, it'll be mostly dodging. SO NO WORRIES THERE!
Accidentally however, well... yeah basically, he'll uh, snug her and depending on if he's at her back his hand might accidentally grope her boob. So it's up to you! He could just be snuggling her boobs in his sleep, which uh... LOL I'M NOT SURE WHICH IS WORSE.
He won't really realize what he's doing, he'll just instinctively cling to the warmth and get comfy. (lucky her she gets to see him being cute)