
Wake windows, regressions, and night-feed schedules from week 1 to month 12 — built for parents in the trenches.
The first 12 months of a baby's life cover an enormous developmental shift: from a newborn who sleeps in 1-3 hour chunks with no day-night rhythm, to a 12-month-old who sleeps 11-12 hours overnight with two predictable naps. The path is not linear, the advice online contradicts itself, and most parents cannot tell what is normal vs what needs intervention. The single most useful concept in baby sleep is the wake window — the time between sleep periods, which grows with age. Most newborn sleep problems trace to wake windows that are too long; the baby becomes overtired and sleeps WORSE, not more.
Most "regressions" are wake-window problems wearing a developmental costume. The 4-month "regression" is the biggest one, and it is not actually a regression — it is a permanent change in sleep architecture (your baby is now sleeping like an adult, with full wake-ups between sleep cycles). The fixes are different from what the standard regression advice prescribes. This workbook is method-agnostic on sleep training.
It explains the major methods (Ferber, Weissbluth, gentle/no-cry, fading) so parents can pick what fits their values and endurance. It is also honest about when not to sleep-train (active illness, recent moves, parental burnout). The wake-window schedules and night-feed protocols work regardless of training approach. None of this is medical advice; if your baby shows red-flag signs (snoring, breathing pauses, persistent inconsolable crying past 12 weeks, low wet-nappy count, fever under 3 months), call your paediatrician.
Sister product to the toddler sleep workbook (12-36m), built for the year before. Wake windows that actually fit a 6-week-old vs a 6-month-old, the 4-6 month regression decoded, the night-feed-dropping protocol, and the 8-month separation-anxiety wave. No judgment about feeding or sleep training method — just what to expect and what to try.
Wake-window cheat sheet by age (week 1 through month 12). The 4-month regression decoded. Night-feed shortening protocol (1 minute every 3 nights). 5am-wake diagnosis by age. Sleep training methods compared without judgment. The 8-month separation anxiety wave. Safe sleep environment setup. Red-flag checklist for medical attention.
A peek at three pages from inside the workbook.
Newborn (0-6 wk): 45-60 min. 7-12 wk: 60-90 min. 3-4 mo: 90-120 min. 5-6 mo: 2-2.5 hr. 7-9 mo: 2.5-3 hr. 10-12 mo: 3-3.5 hr (and 2-3 naps). Print the cheat sheet; tape it to the fridge.
It is not a regression — it is a permanent change in sleep architecture. Your baby is now sleeping like an adult, with sleep cycles that fully wake them between cycles. The fixes are different from the standard "regression" advice.
Most healthy babies can drop the dream feed by 4-5 months and the 3am feed by 6-8 months (with paediatrician sign-off on weight). The protocol: shorten by 1 minute every 3 nights until the feed is 0.

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