REM Behavior Disorder

[sleepyTim]

I recently had a sleep study performed. Results indicated that I never achieved REM sleep during the night. What are the effects, both short term and long term, of not achieving REM sleep?

I am a 65 year old male with Periodic Limb Movement Disorder. The Doctor prescribed Sinemet CR 25/100mg twice a day, morning and lunch for the PLMD. However my wife still wakes up and complains of my "jumping".