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Baby Sleep Guides

Clear, practical answers about baby and toddler sleep — wake windows, bedtimes, nap transitions and sleep regressions.

Calculators and charts

Wake Windows by AgeHow long babies should stay awake between sleeps, from newborn to 2 years.
Baby Bedtime CalculatorFind the right bedtime from your baby’s age, wake-up time and naps.
How Much Sleep Does a Baby Need?Recommended total sleep by age, with a typical day and night split.
Adjusted Age CalculatorWork out a premature baby’s corrected age from birth date and due date.

Nap transitions

The 4 to 3 Nap TransitionUsually 4–5 months. Signs, steps and before-and-after schedules.
The 3 to 2 Nap TransitionUsually 6–8 months. How to drop the third nap smoothly.
The 2 to 1 Nap TransitionUsually 13–18 months. Signs of readiness and a switch plan.
When Do Toddlers Stop Napping?Most stop between 3 and 5 years. Signs, quiet time and bedtime tips.

Sleep regressions

The 4-Month Sleep RegressionWhy sleep changes around 3–5 months, and what helps.
The 8-Month Sleep RegressionCrawling, standing and separation anxiety around 8–10 months.
The 12-Month Sleep RegressionNap refusal around the first birthday — usually a phase.
The 18-Month Sleep RegressionIndependence, molars and bedtime battles around 18 months.
The 2-Year Sleep RegressionStalling, early waking and nap refusal around age 2.

Sleep problems

Signs Your Baby Is TiredEarly and late sleepy cues, and the signs of an overtired baby.
Why Is My Baby Taking Short Naps?Why 30–45 minute naps happen and how to lengthen them.
Why Is My Baby Waking Up So Early?Common causes of 5 am wake-ups and how to shift them later.

Sleep schedules by age

Newborn (0–4 weeks)
1 month
2 months
3 months
4 months
5 months
6 months
7 months
8 months
9 months
10 months
11 months
12–14 months
15–17 months
18–23 months
2 years

Nap calculator Wake windows by age Bedtime calculator Sleep guides About Privacy

Baby Nap Planner gives general information, not medical advice. Always follow safe-sleep guidance and ask your pediatrician, health visitor or doctor if you’re worried about your child’s sleep or health.