Detecting sleep without wearing a watch to bed: a Home Assistant activity score
I wanted my house to know when I’d gone to bed. I do own an Apple Watch, but wearing it overnight is a hassle — it means remembering to charge it during the day instead of overnight, and honestly a watch on my wrist all night is just uncomfortable. So instead of leaning on wrist-based sleep tracking, I built the detection out of presence sensors already in the walls: mmWave motion sensors, a bed sensor, and whatever the TV and Sonos happen to be doing. ...