REST (how you Rest your body)
Aim for 7-9 hours of uninterrupted sleep per night.
Keep your sleep schedule as consistent as possible.
Avoid afternoon caffeine.
Limit (or eliminate) alcohol.
Set a bedtime relaxation routine.
Check out Dr. Andrew Huberman's Toolkit for Sleep at hubermanlab.com/toolkit-for-sleep.
If you snore, consider getting tested for Obstructive Sleep Apnea (OSA). Read more at my.clevelandclinic.org/health/diseases/8718-sleep-apnea.