Wake windows by age: a gentle guide
How long babies usually stay awake between sleeps, from newborn to toddler, and why it is a range, not a rule.
A wake window is the stretch of time your baby is awake between two sleeps. Catch the end of it and settling is usually easier. Miss it, and an overtired baby can fight sleep even harder.
Typical ranges
These are the typical ranges Chaddo starts from. Every baby is different, so treat them as a starting point:
| Age | Naps | Wake window |
|---|---|---|
| 0–2 months | 4 | 45 min – 1.5 h |
| 3–4 months | 3 | 1.25 – 2 h |
| 5–6 months | 3 | 2 – 2.5 h |
| 7–8 months | 2 | 2.5 – 3.5 h |
| 9–12 months | 2 | 3 – 4 h |
| 13–18 months | 1 | 4 – 5.5 h |
| 19–35 months | 1 | 5 – 6 h |
Watch the baby, not just the clock
Sleepy cues often show up before the window ends: staring into the distance, rubbing eyes, pulling ears, or getting fussy with toys they loved five minutes ago. If you see them early, it’s fine to start winding down early.
How Chaddo helps
When you log a wake-up, Chaddo looks at your baby’s age and how long they’ve been awake, and shows when the next nap is likely due. You’ll get a heads-up before the window closes, so you can dim the lights instead of racing the clock.
This is general information, not medical advice. If you’re worried about your baby’s sleep, talk to your paediatrician.