Sleep is Key
The 4 pillars of sleep are:
Regularity (schedule consistency)
Continuity (not waking up in the night)
Quantity (in total and in each stage - NREM and REM) 7-9 hours nightly is goal
Quality
Good sleep protects against:
Dementia
Coronary artery disease
Cancer
Diabetes and metabolic disease
How can you get more or better sleep?
Establish a routine and stick with it
Turn off screens 30-60 min before bed
Limit sleep aids that disrupt your sleep architecture (this includes Ambien and similar drugs, alcohol, caffeine, and THC)
Consider CBTi (cognitive behavioral therapy for insomnia) - this is the best way to improve your sleep without medications. You can find a local therapist or take a self guided course using a variety of books.