I'm reading this book(Why We Sleep by Matthew Walker) right now. The number one piece of advice it provides is to set an alarm to go to bed and try to fall asleep at the same time every night, even on weekends. Other pieces of advice include lowering the temperature to 65°F at night(really), reduce or stop caffeine and alcohol intake, avoid screen time and light at night, and several other pieces of advice. It's an o…
Regarding the alarms: I find that consistency is much more important for mee than total hours of sleep. I'm much better on a consistent 7h/day than on 8h/day where my sleep/wake time moves around.