I wouldn't know, I've never tried to sleep after a trip before. When I take it it's almost always in the morning following work, then I end up going out afterword and chilling with friends. But I'm pretty sure I could fall asleep on it if I actually wanted to, especially with some weed thrown in the mix (which it always is anyways). Come to think of it, I'd say it'd be quite easy to fall asleep afterwords (though I usually enjoy being up to analyze what the fuck just happened to me lol). Next time I trip I'll give it a try..