sleep talking trying to have sex??

So me and my boyfriend do not live together but when he comes over in the mornings after he works we will take a nap, well it's been going on for about a few months maybe more... everytime we're sleeping he's trying to have sex with me??? But he's sleeping! I tell him when he wakes up and he don't remember it and just laughs. Sometimes he will hump me, he would rub my ass, my vagina, or my tits. And he would say "lets fuck" and I'm just telling him to go to sleep. Sometimes he would tell me to grab his cock and get on top of him. Lol.. today he said "lets sleep naked" and it was creepy because I woke up for a split second and he was starring at my body! He doesn't remember any of it. I mean don't get me wrong I like that he likes my body that much and wants me all he time, it's not like he's thinking of someone else because he says my name in his sleep... does anyone know what's going on??