Definitely, thanks for this.

Anyone reading this far looking to optimize sleep, don't forget the basics of consistent schedules/meals and regular exercise. Personally, I can't exercise or eat too close to bed, as it keeps me awake. If you have the flexibility to wake without an alarm, that can be good as well to prevent sleep cycle intrusion. Stay away from blue wavelengths of light as bedtime approaches (use redshift/f.lux/etc on screens).