SleepSpace app
SleepSpaceUses itUsed as a sleep-cycle alarm and tracker
Asprey uses the SleepSpace app's alarm to wake near the top of a sleep cycle, and also uses it for sleep tracking.
“I wake up using the SleepSpace alarm that gently rouses me at the top of a sleep cycle so I don't get jarred awake.”Dave Asprey
Source: This Biohacker's Nightly Routine Gives Him The Sleep Quality Of A 20-Year-Old (article, 29 Jan 2025)