So I'm a little confused about why alcohol is bad for sleep. Help?

because sometimes if you drink too much, and you need to throw up but fell asleep before you could, your body might still vomit while you're sleeping. if you're sleeping on your side then you'll be lucky, but if you're sleeping on your back then you might choke from your own vomit. i know this is really nasty, but its true. hope i was a help :)