Just to tag on a bit to what Erin said...
Your body needs REM sleep (REM sleep is the stage in which dreaming occurs). Sleep-deprivation studies in which people were consistantly aroused right before entering REM sleep led to psychosis. The studies had to be halted part-way in because of danger to the test subjects' mental well-being.
People tend only remember dreams that are in progress when they wake up.
How many total hours are you getting, iry?
How does this total compare to what you've gotten in the past?
How old are you?
Do you have any major health problems?
Are you under any kind of notable stress lately? (keeping in mind that even positive life-events cause stress, like having a baby or getting a new job)
Of course, I can only speculate from here; anything you tell me will probably prompt a "see your doctor" reply from me, so if you don't feel like disclosing, don't feel like you have to.
