Sleep sleep sleep

Last night I went for my cpap titration. I had to sleep with a mask and
it felt like I was suffocating. They tell me I slept better... 4 hours
of rem sleep vs 15 minutes the first night... they tell me that's called
rem rebound, which is what the body does after its been sleep deprived
and is finally able to get decent rest... funny, though, I still don't
feel rested. They told me it could take a week or two of decent rest
before I feel more rested... its all just really annoying... but the
idea of not being exhausted everyday, well that sounds good...