From a still phone to a night of sleep

While you sleep, your phone lies still. NightStand reads that stillness as your night.

6h 34mphone at rest
8:00 AM

The phone lay still from 11:00 PM to 5:41 AM and was picked up twice. You guessed 7h 15m, 41 min more than measured.

asleepinterruptionyour guess
1

Set it down.

The app records every night on its own. It reads how your phone moves and keeps a 30-second summary.

The Today screen: last night lasted 6 hours 34 minutes, from 11:00 PM to 5:41 AM, with two short interruptions.
2

Guess first.

Each morning, it asks about your night before it shows the measurement: how you slept, when you fell asleep and for how long.

The morning check-in asks how long you slept, with a wheel set to 7 hours 15 minutes.
3

Test your reaction.

One 30-second test in the morning check-in and one before bed. Five more tests of attention and memory, any time.

The Tests page: Reaction, Symbols, 2-back, Go / no-go, Sequence and Colors, each with its last score.
4

See how you slept.

Your guess beside the measured night, on one clock, with each time you picked the phone up.

Your night: a guess of 7 hours 15 minutes beside 6 hours 34 minutes measured, on one clock.

How sleep shows the next day

Six 30-second tests of alertness, memory and focus. Trends set each score against the night before.

Reaction

Alertness

A counter starts at random moments. Tap as fast as you can when it starts.

Symbols

Processing speed

A symbol appears in the middle. Tap its number from the key at the top.

2-back

Working memory

Letters appear one at a time. Tap Match when a letter is the same as the one two letters before.

Go / no-go

Impulse control

Tap as soon as the green circle appears, and hold back on the pink square.

Sequence

Memory span

Pads light up in a sequence. Tap them in the same order. Each round adds one.

Colors

Focus

A color word appears. Tap the color of its ink, as fast as you can.

Your sleep over weeks

Your average night and how regular it is, by day, week, month and six months.

Streak: 4 days of check-ins in a row, on a calendar of October.
StreakMornings with a check-in.
Trends for one week: a bar per night from the time asleep to the time awake.
TrendsA bar per night, asleep to awake.
One night: 5 hours 12 minutes measured, with that morning's check-in.
Any nightThe measurement and that morning's answers.

What it asks your iPhone for. Motion & Fitness to measure the night, Health for the sleep an Apple Watch wrote, Location to keep recording through the night, and Notifications for the two reminders. Each has a switch in Settings.

Sleep on it.

NightStand is in beta testing.