Well, I started with a watch by Polar Fitness that did okay, but i had to keep it on all night and it felt a little spotty.
Then when I started really leaning out - IDK why but I was becoming a hot sleeper. Like I was always a hot sleeper, but now I was sleeping under a full speed fan with no blankets/sheets on and was still sweating through my sheets nightly. So I bought a bed that’s probably too expensive to justify, but it keeps me warm/cool depending on the season and it also tracks my sleep through sensors and all that.
FWIW, the Tap Test is almost as good at tracking sleep/recovery as any watch or bed. Using a Click Counter is a little easier than counting dots on a sheet of paper though.
^I also don’t listen to my bed when it tells me I shouldn’t train. Like I’m gonna listen to some dumb bed 