Yes, you were sexually assaulted. And I agree with @RussH that the guy knew he was sexually assaulting you and knew what he was doing was wrong if he pretended to be asleep. You didn't send him any signal -- he assaulted you and sounds like a sleaze. It's really f*cked up that this situation has even triggered responses saying that getting into bed with him could have been a signal, and as girls we need to always have our guards up and so on. Because that's exactly what a rapist would say as a defense -- "well, she got into the bed with me, how was I to know?" And here we are, some of us sexual abuse victims ourselves, echoing the excuses of rapists and abusers and thinking it's normal. Yes, it's true that there are pervs out there and women need to be on the lookout, all of that is absolutely true -- but the burden of preventing rape shouldn't be on women/the victims -- all that does is absolve the pervs of responsibility. The poster said she had told this guy she wasn't interested in him sexually. Yes, she slept in his bed -- with her clothes on. In a passed out state. I see how a rapist could have a field day with that situation, but I don't see how any normal, non-rapey guy can think she gave him the go ahead.