I was like that for a long time. About 3 years ago, my spouse convinced me to go to a sleep doctor. One of the first things he checked was my nose: it turned out I had a severe deviated septum. He referred me to a surgeon who was able to fix that with a very common procedure. I now fall asleep more quickly, and wake up naturally after about 7-9 hours depending on physical activity.

You probably have a different thing than this, but it's pretty easy to have checked. Totally worth it for me.