Why do I have trouble waking up?
I'm 24, in college and busy with school and work. I'm relatively healthy. I've always been a natural night owl. 3 or 4 always used to be about the time I went to sleep. But now, I need to get up in the morning. And I've been successful at getting myself to go to sleep on time. Around 11 or 12. But I still sleep in. I get a good constant full night's rest 7 or 8 hours. And my eyes open about 7 or eight hours later. But I feel so tired still when I wake up, I often close my eyes and go back to sleep. Not to rise up finally only an hour or so before work or class. Any idea why a full night constant sleep doesn't feel like enough most of the time for me? And any tips?
Also, some nights on occasion, I can get as little as 5 hours of sleep and feel up active and ready all day long. It's odd.