Sleep schedule for iPhone

Most sleep apps grade last night. TuckIn plans tonight.

TuckIn reads today's strain, your sleep debt and your wake-up time from Apple Health and sets one bedtime for tonight. Then it plans your day backwards from it: when to get light, your last coffee, your last meal and when to wind down.

Download on theApp Store Free · iPhone · iOS 18.2 or later
 Tap the moon to tuck in
8:00 AM · Why TuckIn

A sleep score can't change last night. A plan can change tonight.

A typical sleep tracker, 8:00 AM
  • Sleep score: fair
  • Restless after 3 AM
  • Deep sleep below average

Useful history. No instructions for the next 14 hours.

TuckIn, 8:00 AM
  • 10:00 AMGet outside light before this
  • 11:20 AMLast coffee, so it's cleared by bedtime
  • 8:04 PMFinish your final meal
  • 9:34 PMWind down. Entertainment apps pause
  • 10:34 PMBedtime, with an alarm to tell you

Every time updates as your strain rises and you log coffee during the day.

What's inside

Built to get you to bed on time, not just to measure you.

Bedtime10:34 PM
alarm
set

Bedtime and wake alarms

Alarms that follow tonight's plan. When your bedtime moves, the alarm moves with it.

Wind-down timepaused until 7:00 AM

Wind-down app pause

Pick the app categories once. TuckIn shields them when your wind-down window opens. Optional, and you stay in control.

Coffee now?58 mg active
+More
coming

Home Screen widgets

Check a coffee against tonight's bedtime and log it with one tap, without opening the app. More widgets are on the way.

Strain 12.4

Strain from your heart rate

TuckIn turns heart rate, resting heart rate and HRV into a daily strain score. More strain means more sleep tonight.

Sleep debt

The sleep you owe from recent nights when you slept less than you needed. TuckIn adds it to tonight's sleep need, so you can bring it back down.

Focus · time awake
You met most of your sleep need, but you were awake for 48 min across 5 wake-ups, more than usual. That's the thing to watch tonight.

AI sleep summary

On-device AI reads last night and points to what actually needs your attention, whether that's your sleep need, time awake, or deep and REM sleep. Example shown.

How it works

Your day, planned backwards from bedtime.

Scroll through a day with TuckIn. Each window is worked out from tonight's bedtime.

8–10 AM
Morning light

Set tonight's clock early

Daylight in the first hours of the morning anchors your circadian rhythm, so you feel sleepy at the right time tonight.

until 11:20 AM
Caffeine cut-off

Coffee that's gone by bedtime

TuckIn models caffeine with a half-life. Log a drink, or tap the widget, and the cut-off moves to keep what's left at bedtime low.

by 8:04 PM
Final meal

Finish your last meal in time

Late digestion keeps your core temperature up when it should be falling. TuckIn tells you when to have your last meal of the day.

9:34 PM
Wind down

An hour to slow down

If you choose, TuckIn pauses the entertainment apps you pick for the hour before bed, using Apple's Screen Time.

10:34 PM
Bedtime

One number, set for tonight

Not a fixed time. A hard training day or a short night moves it earlier. Your bedtime and wake-up alarms are set for you.

10:34 PM · Bedtime calculator

See how TuckIn sets your bedtime.

This is the same calculation the app runs every day. In the app, strain and sleep debt come from Apple Health automatically. Here you can try your own numbers.

Worked out from your heart rate through the day. 0 is a rest day, 18 and up is very high.
Sleep you owe from recent short nights. Lower is better.
Tonight's goal
Tonight's bedtime10:34 PM8h 26m of sleep
Last coffee11:20 AM
Last meal8:04 PM
Wind down9:34 PM
Wake up7:00 AM
Baseline sleep need7h 30m
Extra for strain+31m
Sleep debt repayment+25m
GoalPeak × 100%
Sleep window8h 26m

The caffeine cut-off assumes one drink and the default 5-hour half-life, with under 20 mg left at bedtime. In the app you can set your own half-life, and every drink you log counts. TuckIn needs about a week of sleep data from Apple Health before its numbers are fully personal to you.

11:00 PM · Privacy

Your sleep stays on your phone.

TuckIn works out your schedule on your iPhone. There's no account to create, and no TuckIn server holding your health data.

No sign-up

Open the app, connect Apple Health, set your wake time. That's it.

Your iCloud, not ours

Data stays on your device and syncs only through your own iCloud account.

Apple frameworks only

No third-party analytics or ad SDKs. Just HealthKit, SwiftData and CloudKit.

Leave any time

Revoke Health access in Settings, or delete the app to remove its local data. Read the privacy policy.

Questions

Before you download

Do I need an Apple Watch?

TuckIn reads sleep and heart-rate data from Apple Health, so you need a wearable that writes those to Health. Apple Watch does. Many other trackers do too, if their app syncs to Apple Health.

How is this different from my sleep tracker?

Your tracker tells you how you slept. TuckIn tells you what to do today so tonight goes well. It uses the data your tracker already collects, so they work together.

How long before the bedtime is personal to me?

TuckIn builds your baseline from the last 45 days in Apple Health and needs at least 7 nights of 4 hours or more. If you already wear a tracker, that's usually there on day one.

What does it cost?

TuckIn is free to download on the App Store.

What do I need to run it?

An iPhone on iOS 18.2 or later. Some features, like on-device sleep summaries, depend on your iPhone model and iOS version.

Is this medical advice?

No. TuckIn is a general wellness app, not a medical device. If you think you have a sleep disorder, talk to a doctor.

TuckIn app icon

Stop leaving sleep to chance.

Get tonight's bedtime, and the plan to hit it, in under two minutes.

Download on theApp Store
 Tap the moon to tuck in