I am a terrible sleeper thanks to PTSD and some childhood issues so I wake up several times throughout the night and don't get enough REM cycles (my guess.) I usually need about 9-10 hours because of it, although I can usually sleep more...
I am a terrible sleeper thanks to PTSD and some childhood issues so I wake up several times throughout the night and don't get enough REM cycles (my guess.) I usually need about 9-10 hours because of it, although I can usually sleep more...