I used to smoke a bowl every night before I went to bed, without I just wouldn't be tired, I wouldn't get to sleep untill 4 or 5 in the morning. Then a while ago I had this incredibly enlightening 'shroom trip, and that night, I packed a bowl, and was about to blaze it when I realized I just didn't really want to smoke. So I went to bed, and fell asleep with no troubles, and haven't had any troubles getting to sleep without it since. Although a couple of nights ago I had friend visiting, and we got pretty high, I was still quite stoned when I went to sleep. I had an experience almost exactly like Highanxieties described, except I wasn't terrified of falling asleep, just nervous about whether or not I would remember to breathe.