Wtf?!

So my S.o. came here today to do work on my parents' house (tile work). Had no idea he was spending the night. There's been distance between us lately so I didn't really know how he was feeling. So he comes to me tonight, horny as hell, telling me all these things he wants to do to me (though I'm on the rag). He's extremely horny. So I'm starting to feel it & we go smoke a cigarette & he literally passes out in a chair in the garage (mind you he didn't sleep last night & worked all day). What should I do? Tomorrow he has to go get his kids & my kid will be home. Should I take the initiative & go wake his ass up so we can have a good night since we haven't in awhile? Or should I let him sleep? I don't know what to do:/