does alcohol interrupt rem sleep?
<answer> Yes, an alcohol interrupt rem sleep. <context> Deep sleep is when the body restores itself, and alcohol can interfere with this, explains Dr John Shneerson, head of the sleep centre at Papworth Hospital in Cambridge. As the alcohol starts to wear off, your body can come out of deep sleep and back into REM sleep, which is much easier to wake from. That's why you often wake up after just a few hours sleep when you've been drinking..