6h 34m
Your night, measured.
How long you slept, from the phone on your nightstand.
Your nightstand knows how you slept.
A sleep tracker for iPhone. Leave the phone by your bed and wake up to how long and how well you slept.
- TonightSet it down
- MorningSee your night
- Next dayTest your alertness
How long did you sleep last night?
Are you sure?
Did you feel alert when you woke up?
7h 15m you guessed
6h 34m measured
Know if you were right.
You guess first. Then you see the measured night.
Feel it the next day.
A 30-second test shows how alert you are.
Set it down tonight.
Wake up to your night.
How alert are you right now?
0000
Compared with iPhone users of an online reaction test, Passell et al. 2021.
Ten seconds. Tap the moment the counter starts.
Night after night
