hey - great question
i used whoops journalling feature for several montths.
what I found was that it often throws 5+ variables into one “correlation”, creating a lot of noise where it ends up suggesting X impacting your sleep, when it could have actually been Y.
Pulse is built for n=1 experiments: you isolate a habit (like less screen time, consistent wake up time, caffeine impact), test it, and see if it actually helps your sleep better or not. think self-controlled studies
what I found was that it often throws 5+ variables into one “correlation”, creating a lot of noise where it ends up suggesting X impacting your sleep, when it could have actually been Y.
Pulse is built for n=1 experiments: you isolate a habit (like less screen time, consistent wake up time, caffeine impact), test it, and see if it actually helps your sleep better or not. think self-controlled studies