Baby sleep tracker: naps, nights and the patterns in between
Nap and night timers that carry across midnight, the settling details that matter, and a clear picture of the last seven nights.
Cocoon tracks naps and night sleep with timers that run across midnight, and records where your baby slept, false starts, how long settling took and time held before the cot. Insights show day versus night sleep, the last seven nights, wakings, the longest stretch and bedtime drift, and a sleep report PDF covers 7, 14 or 30 days.
What it does
Start a nap or night sleep in one tap (Cocoon picks nap or night from the time of day), pause it, and end it when your baby wakes — even if that's tomorrow. Note where they slept (cot, pram, contact nap), whether it was a false start, how long settling took and how long they were held first.
If you start logging late, use Minutes ago or Set time. End when your baby wakes; the Sleep card shows time since the last recorded wake. Resuming a paused sleep restores its full window, including the pause. To record an awake break separately, end that sleep and start another when your baby falls asleep again.
While a nap runs, a gentle “nap pocket” line estimates how much quiet time you probably have left, from your baby's usual nap length — a pocket for you, not a countdown.
Sleep in depth shows day versus night sleep, the last seven nights drawn as blocks, a 24-hour clock view, night wakings, the longest stretch, time to settle and bedtime or wake-up drift — by week, month or year.
A sleep plan picks one focus — early waking, a nap transition, settling, night wakings or simply keeping things on track — with a suggested schedule and steps from the guides. A bedtime routine checklist appears in the evening, and a sleep report PDF is ready to share.
How it works
- Tap Sleep on Home to start a nap or night sleep; tap again to end it.
- Add where, settle time or a false start if you want to.
- Open Insights → Sleep in depth for nights, wakings and stretches.
- Choose Sleep report there to export 7, 14 or 30 days.
The details
- Timers carry across midnight and survive the app closing
- Shared timers help caregivers see the same active sleep when their devices are connected
- Bedtime routine checklist (up to 12 steps) that resets daily
- Sleep report PDF: 7, 14 or 30 days
- Live Activity and widget show a running nap
Common questions
Can Cocoon track night sleep that crosses midnight?
Yes. Nap and night timers run across midnight and are stored as timestamps, so a night sleep started at 7pm and ended at 6am counts correctly.
What sleep insights does Cocoon show?
Day versus night sleep, the last seven nights, a 24-hour clock view, night wakings, the longest stretch, time to settle, time held before the cot and bedtime drift — over a week, month or year.
Can I share my baby's sleep with the doctor?
Yes. The sleep report exports a PDF for the last 7, 14 or 30 days, and the checkup report includes sleep patterns too.
Read more in the guides
Newborn sleep patterns: what to expect from 0 to 12 weeks
How much newborns sleep, why they wake so often, what normal sleep noises look like, and how sleep changes over the first 12 weeks.
Baby night waking: what's normal by age and how to respond
How often babies and toddlers wake at night by age, the common causes, a calm night-waking routine, when to feed or resettle, and when waking needs a doctor.
Baby nap transitions: how many naps by age and when they drop
How many naps babies and toddlers usually take at each age, how long naps last, signs a nap is ending and how to handle each transition safely.
Baby bedtime routine: simple steps by age and why they help
How to build a calm, consistent bedtime routine for your baby or toddler, with steps by age, moving the feed earlier, and keeping it the same across carers.
Early morning waking: why babies and toddlers wake at 5 am
What counts as early waking, the common causes in babies and toddlers, step-by-step changes to try, toddler clocks and when it's just their body clock.
Safe sleep for babies: the rules for every sleep, and why
The safe sleep recommendations from Red Nose, the NHS, the Lullaby Trust, the AAP and NICHD, explained for every nap and night in the first year.
Free tools
Sleep tracker, plan & report
Every feature is free right now — no ads, no subscription. Log feeds, sleep and nappies in seconds — and keep the memories too.
Goes well with
Next nap & feed predictions
See when the next nap and bedtime are likely from the first logged wake. Times start typical for your baby’s age and become their own within days.
How it worksSleep program
Choose an approach that fits your family, and Cocoon walks you through it night by night — measuring progress from the logs you already keep.
How it worksInsights, charts & weekly digest
The long-term reason to keep logging: clear charts, a weekly digest with numbers you can trust, and patterns compared with your own baby — never someone else's.
How it works