Snoretracker on Android is a good one. It helped record and identify my snoring . The only issue is it advertised to you often…so that kinda sucks.

Pokémon Sleep

“Sleep as android”, Pretty much supports most common watches and smart wake up is pretty great.

I don’t use apps like this because I have a miband, I think it does the work better.

Although Pokémon Sleep have called my attention, for the better or the worse.