The guideline
The AASM and SRS consensus recommends seven or more hours a night for adults. Regularly sleeping less is linked with worse health, mood and performance.
Finding your number
On a holiday with no alarm, after a few days, most people settle at their natural need. A tracker shows it too: the nights after which you feel and perform best.
What Life OS does
Life OS learns your sleep need from your own nights, shows how far short you were, and tells you what time to go to bed to catch up.
Questions people ask
Is 6 hours of sleep enough?
For most adults, regularly, no: the consensus recommendation is seven or more.
Can I catch up on sleep?
Partly, over a few nights. Going to bed earlier for several days works better than one long lie-in.