Actually, you don't get REM when you smoke. That's why you don't dream and it's why it comes back full-swing when you stop. I occasionally smoke and drink (alco

Actually, you don't get REM when you smoke. That's why you don't dream and it's why it comes back full-swing when you stop. I occasionally smoke and drink (alcohol also disturbs REM quite a bit), but I try and do it early in the day so I can get quality sleep.