LullsongWake window calculator
Pick your baby’s age to see a typical wake window, the usual number of naps, and how much babies that age sleep in studies.
2–3 h
- Naps per day3
- Average total sleep in studies12.9 h
- Normal spread8.8–17 h
- Recommended12–16 h (AASM)
How to read this
Wake windows are a rule of thumb from sleep coaching, not a tested method. Treat the range as a starting point and watch your baby: yawning, staring off and rubbing eyes are better signals than the clock.
The sleep totals are different. They come from a 2012 review of 34 studies of how much healthy babies actually sleep. The spread is wide, and a baby near either end can be perfectly normal.
Every age at a glance
| Age | Wake window | Naps |
|---|---|---|
| Under 1 month | 35–60 min | 4–8 |
| 1–2 months | 60–90 min | 4–5 |
| 3 months | 75–120 min | 4–5 |
| 4 months | 1.5–2.5 h | 3–4 |
| 5–6 months | 2–3 h | 3 |
| 7–9 months | 2.5–3.5 h | 2–3 |
| 10–12 months | 2.5–4 h | 2 |
| 13–14 months | 4–5.5 h | 1–2 |
| 15–24 months | 4.5–6 h | 1 |
Wake windows and nap counts: common sleep-coaching ranges, not measured in a study. Galland et al. found an average of 3.1 naps a day up to five months, 2.2 at six to eleven months and 1.2 at one to two years. Total sleep: Galland et al. 2012. Recommendations: National Sleep Foundation (0–3 months) and American Academy of Sleep Medicine (4–24 months).
Why is this only a rule of thumb? Read what the research says about wake windows, or turn the range into a day plan with the nap schedule maker.
Sources
- Galland BC, Taylor BJ, Elder DE, Herbison P. Normal sleep patterns in infants and children: a systematic review of observational studies. Sleep Med Rev 2012;16:213-222. https://doi.org/10.1016/j.smrv.2011.06.001
- Staton S, Rankin PS, Harding M, et al. Many naps, one nap, none: a systematic review and meta-analysis of napping patterns in children 0-12 years. Sleep Med Rev 2020;50:101247. https://doi.org/10.1016/j.smrv.2019.101247
- Hirshkowitz M, Whiton K, Albert SM, et al. National Sleep Foundation's sleep time duration recommendations: methodology and results summary. Sleep Health 2015;1:40-43. https://doi.org/10.1016/j.sleh.2014.12.010
- Paruthi S, Brooks LJ, D'Ambrosio C, et al. Recommended amount of sleep for pediatric populations: a consensus statement of the American Academy of Sleep Medicine. J Clin Sleep Med 2016;12:785-786. https://doi.org/10.5664/jcsm.5866
More sleep guides
- Nap schedule maker
- Safe sleep: the essentials
- Sleeping through the night: what’s normal
- The 4-month sleep regression: what’s actually known
- Wake windows: what the research actually says
- Is white noise safe for babies?
- When to stop swaddling
- Room temperature and what to wear
- Contact naps: what’s safe and what’s known
- Dream feeds: do they work?
- Lullabies and singing: what the research shows
Lullsong
Lullsong plays soft white noise and lullabies for naps and bedtime, with a 30-minute timer on by default.