Recently I have had trouble waking up from lucid dreams. I can usually wake myself up in a dream by opening and closing my eyes and saying "wake up, wake up, wake up." But last night, I couldn't. I kept thinking I was awake, but would then realize I was still dreaming.

This wouldn't scare me so much if I hadn't slept from 11:00 p.m. to 1:30 p.m. the next day.
I have read that you can't get trapped in the dream state because eventually your body just isn't tired anymore, and you will stop having REM sleep. That doesn't seem to happen to me. I can REM into eternity.

Any thoughts? I'm a little freaked out today.