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Personalised baby sleep timing

Stop guessing when your baby should sleep.

Sleep Gem learns your baby’s own wake windows from a few taps a day, then tells you the best moment to put them down. Built for naps that land and nights that last.

Download on theApp StoreGet it onGoogle Play

4.9 on the App Store · 10,000+ downloads on Google Play

Free to download · No account needed to start · iOS and Android

  • 4.9 ★App Store rating · 145 ratings
  • 10,000+downloads on Google Play
  • Since 2021helping families sleep
  • Freeno ads, no card required

Three steps

Log. Learn. Follow.

No questionnaires, no spreadsheets, no reading tea leaves at 2 AM. Sleep Gem works from what actually happened.

  1. 01

    Log sleep and wake

    Two taps per nap: Sleep when your baby drifts off, Wake Up when they stir. Add put-down and pick-up if you want settling time tracked too. Fix anything later with undo.

  2. 02

    Sleep Gem learns

    Every day it re-reads each nap and night: how long your baby was awake, how long they slept, how fast they settled. Recent days count most, so growth spurts and transitions show up early.

  3. 03

    Follow the put-down time

    A put-down time for the next nap and for bedtime, updated through the day, with the reasoning one tap away. Bedtime adjusts to how the naps actually went.

Read how it works in detail

A parent in a dim nursery at night, phone in hand, baby asleep in the cot behind

2 AM, handled

Two taps at night. That is the whole job.

Log Sleep and Wake Up, and Sleep Gem does the arithmetic. With a compatible baby monitor (early access), it can even do the taps.

Not another age chart

Age charts say “about two hours”. Your baby says otherwise.

Age-based wake-window charts give an average for babies your child’s age. Sleep Gem starts there, then watches what actually happens: how long each nap lasts, how fast your baby settles, how the night went. Within a few days the schedule belongs to your baby, not the average.

  • Per nap, not per day. The first nap of the day and the last are different problems. Each gets its own window.
  • Recent days weigh more. Growth spurts, teething and transitions are caught early instead of averaged away.
  • Honest when unsure. While it is still learning a nap, it says so, and leans on age-appropriate defaults.

In our backtests over 251,000 real nap decisions, personalised timing beat a fixed age-band table at every age we measured, and the gap widened through toddlerhood. See the evidence.

Illustration: nap length against time awake before the nap, for an example babyExample values, not a real baby's data. Dots cluster around a peak near two and a half hours awake. A dashed line marks the two-hour figure from a typical age chart; an amber marker shows the example baby's own best window at two hours thirty minutes.1h 302h 002h 303h 003h 30Time awake before the nap01h2hNap lengthAge chart says: 2h 00Gemma’s best: 2h 30
Bigger dot = longer napSolid = more recent, faded = olderLearned patternIllustration with example values, not a real baby’s data.

Features

Everything a tired parent needs. Nothing they don’t.

  • Put-down times, to the minute

    A recommended time for every nap and for bedtime, updated as the day unfolds.

  • Every recommendation explained

    Tap Why? to see the naps behind the number. No black box, no guesswork.

  • Nap transitions, handled

    Dropping from three naps to two, or two to one? Sleep Gem plans the day and remembers your baby’s usual routine.

  • A briefing every morning

    Last night in plain language: how long, how many wakings, what changed.

  • Sick days set aside

    Mark a day as unwell and it won’t skew the plan. Pick up where you left off when your baby is well.

  • Logs itself from your baby monitor (early access)

    Connect a compatible camera and Sleep Gem records put-down, asleep, awake and pick-up for you, even when a grandparent or helper did the settling. Rolling out to families who ask: email us to join.

  • Care tracking, alongside sleep

    Feeds, diapers, medicine, pumping, temperature, and growth with WHO percentiles.

  • Share with caregivers

    Invite a partner, grandparent or helper to follow the day from their own phone.

  • Fix mistakes in a tap

    Wrong time? Undo, edit or insert an entry. Logging should never feel like homework.

Ready when you are

Start tonight. It is free.

Day one starts from the awake times that suit most babies your child’s age. Every nap you log after that makes the timing your baby’s own.

Download on theApp StoreGet it onGoogle Play

4.9 on the App Store · 10,000+ downloads on Google Play

Good morningTue 9 Sep

Gemma slept 10h 40m last night with one brief waking at 2:10 AM. Bedtime was 7:05 PM, ten minutes earlier than her usual, and she fell asleep in 8 minutes.

Night 10h 40m1 wakingSettled in 8 min
Care today
Diaper · 8:10 AMBottle 150 ml · 9:00 AMMeds · 8:30 PMTemp 36.8° · 7:30 AM
Weight7.9 kg62nd percentile
Length68 cm55th percentile
WHO growth standards

The whole day, in one place

Wake up to a briefing, not a spreadsheet.

Each morning Sleep Gem tells you how the night went in plain language. Feeds, diapers, medicine and growth sit right next to the sleep log, so the people who care for your baby see the same picture.

Invite a partner, grandparent or helper to follow along. Sign in on two phones with one account to log together.

From parents

Parents sleep better too.

Two rested parents sharing a coffee in the morning
4.9
App Store rating · 145 ratings
Truly a Gem

This app is sooo intuitive and helps me so much for starting sleep training for my little one. I finally dare to do it knowing that I have this app for managing scheduling. Mad thankful. Kudos and sooo grateful for the creator developing this!

Parent review
Finally sleeping like a baby

Since we started using this app, our baby has been taking great naps and sleeping through the night. We are also getting much better sleep ourselves. Thank you so much!!

Parent review
Such a time (life) saver

Having this app for our second child has been such a life changer! Thank you so much fellow parent daddy for the app and constantly improvising the app with new features!

Parent review

A note from the founder

I’m DX, a father of three in Singapore. Our first daughter woke many times a night and could not settle on her own. A sleep trainer showed us that the right amount of awake time before each sleep changes everything, and it did. But working it out by hand, day and night, was exhausting. So in 2021 I built Sleep Gem to do it for us.

Two more babies, five years and hundreds of thousands of logged days later, it learns each baby’s own pattern, shows its working, and, for early-access families, can even log from your baby monitor. It changed our nights, and I still read every message parents send us.

DX Founder, Sleep Gem

Our story

Trust

Your baby’s data, handled with care.

You are trusting us with the most personal log you keep. We treat it that way.

Read the privacy policy

  • No ads, ever.Nothing in the app is for sale to anyone but you.
  • We never sell your data.Your logs are used to give you guidance and, in aggregate, to make the guidance better.
  • Start as a guest.Your logs stay on your phone until you choose to create an account.
  • Delete anytime.Remove your account from inside the app, and email us to have any remaining records erased.
  • Guidance, not diagnosis.Sleep Gem is not a medical device. Your paediatrician always has the last word.

Questions

Good questions, straight answers.

Is Sleep Gem free?

Yes. Sleep Gem is free to download and use, and there are no ads. If we add paid extras in future, we will say so clearly before you are ever asked to pay.

Which ages does it work for?

From the newborn weeks through the toddler years. The guidance adapts as your baby grows and as their nap count changes.

How soon will I see a difference?

Most parents see better naps within about three to five days of consistent logging. The first days of logging matter most, so keep going even when they look messy.

Do I need an account?

No. Start as a guest and log straight away. Create a free account whenever you like to back up your history and sync across devices.

Can my partner or helper log too?

Sign in on both phones with the same account to log together. You can also invite someone to view the log without editing it.

Can it log automatically?

In early access, yes. With a compatible Wi‑Fi baby monitor, Sleep Gem watches for put-down, falling asleep, waking and pick-up and logs them for you, so nobody has to scrub through playback at 3 AM. Automatic logging is being rolled out gradually; email us to join. The live video is never sent to Sleep Gem; if you turn on cloud presence detection, cropped cot snapshots are sent and kept as described in our privacy policy.

Is this sleep training?

No. Sleep Gem does not tell you how to settle your baby. It tells you when the timing is right, which makes whichever approach you choose easier.

Is it medical advice?

No. Sleep Gem gives general guidance based on your logs and typical patterns for your baby’s age. Always check with your paediatrician about your child’s health, feeding and sleep.

Which languages are supported?

English, Chinese (中文) and Bahasa Indonesia.

Something else? Visit support or email hello@sleepgem.app.

Tonight could be different.

Free to download. Start logging as a guest straight away, no account needed.

Download on theApp StoreGet it onGoogle Play

4.9 on the App Store · 10,000+ downloads on Google Play

Download on theApp StoreGet it onGoogle Play