I tend to sleep around 7-7.5h on average. I have started to keep fairly fixed bedtime around 10pm and i'm up and about around 5:30-6ish almost every morning. I dont use alarms at all.

I've noticed that if i wake up for any reason after I have already slept for more than 6h it will be very hard for me to fall back asleep and i tend to give up quickly (if the hour is not too unreasonably early) and just go about my day.

I usually do some reading the first thing i wake up in the morning, and then some light workout like cardio (i like to get a quick sweat on for starting the day and stretching/mild core stuff)