Ok ... I went to bed at 9 pm and awoke at 3:15 am which would constitute just over four 90 minute sleep cycles. When I went back to sleep however, I had a huge vivid dream. I then woke up at 3:30 am ... just 10 minutes later!

My question is this: If you go to sleep and pass through all the deep sleep (alpha, delta waves ect.) into REM sleep... will you return right back into REM if you awake from it for a few minutes?