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.
During REM sleep, your brain and body are energized and dreaming occurs. REM is thought to be involved in the process of storing memories, learning, and balancing your mood, although the exact mechanisms are not well understood. REM sleep begins in response to signals sent to and from different regions of the brain.