I called Nationwide Medical after my current CPAP supplier was no longer an approved Medicare vendor. I gave all my information to the man I spoke to, including the model and serial numbers of the machine I was using, my doctor's names and phone numbers, and my Medicare number.
REM rebound. REM rebound is the lengthening and increasing frequency and depth of rapid eye movement (REM) sleep which occurs after periods of sleep deprivation. When people have been prevented from experiencing REM, they take less time than usual to attain the REM state.
This REM rebound can last for several nights. REM deprivation in humans is associated with a significant increase in stage 1 NREM during the deprivation period. Levels of stage 2 and 4 sleep remain relatively normal. The initial REM deprivation study done by William Dement was reported in an article entitled The Effect of Dream Deprivation.