Yes you do. You just don't remember it. Trust me, if you went every night without hitting REM sleep, you wouldn't function. I had a week where I couldn't sleep for more than 30-40 minutes in one go, and after day three or four, I was lucky to be able to understand anyone.
I had been considering making a response like that. Back in the summer of my grade 9 year, I worked at a mcdonalds... I was sleeping about 1 hour every night, or 2..
I was fucking useless, and I'm amazed I even made it to work every day. If you've ever seen someone who was so high they couldn't even remember where they were, or what they were doing 10 seconds ago, it's kinda like that.Only when your high, you're aware that your missing things. I didn't even realize I was so bad at the time.
Needless to say, I didn't last long.