I've been sleeping with earplugs for 2 days in a row now and it does help a lot. I will try the mask next.

Resting heart rate is thee KPI for sleep. Track it manually with your pulse and a watch. The lower the more deep your sleep. Temperature and darkness also contribute but resting heart rate is most important.

I've been doing some things to try and optimize that: eating last meal 4 hours before bed, red light glasses, no devices an hour before bed (hard one when I'm on a roll with work), reading before bed to wind down.

You’re on it

Wife does earplugs works wonders for her