Sleep
Wake windows, nap transitions, night wakings and sleep training methods explained without judgment — including what the evidence does not show.
Baby sleep schedules and wake windows: 0–24 months
What a day looks like at every age from birth to two, which numbers come from a health authority and which are conventions somebody invented, and where to go next depending on what is actually going wrong.
Wake windows vs scheduled naps: which suits your baby
Two ways to plan the same day, neither of which any health authority publishes and neither of which has been tested against the other. How to choose on fit, when age decides it for you, and how to switch without losing a week.
Sleep training methods compared, without the judgment
Parents choose between branded methods; researchers test behavioural categories. Mapping one to the other — plus what the trials actually found on harm, and a decision rule that is about your baby.
The 2-to-1 nap transition: age, signs and a schedule that works
Usually between 13 and 18 months, and often started too early. How to tell it from the twelve-month false alarm, how to move the nap towards midday, and how long the mess lasts.
The 3-to-2 nap transition: the signs, and how to make the move
Most babies drop the third nap between six and nine months. How to tell a real transition from a bad week, what the new day looks like, and why bedtime has to move.
Bedtime fading: fixing a bedtime that is too early
An hour of bedtime protest usually means bedtime is too early, not that your baby resists sleep. Measure the real sleep-onset time, start there, and walk it back — the supported method with almost no crying in it.
The chair method: gentle sleep training, step by step
In the research it is called camping out, and one trial of 91 infants found it beat graduated extinction for babies with high separation anxiety. The chair schedule, and how to keep the fade moving.
The Ferber method: intervals, timeline and what the evidence shows
In the research it is called graduated extinction, and that is where the evidence lives. The interval schedule, what happens night by night, and what trials found about stress and attachment.
Pick up, put down: how it works, and what the evidence does not say
One of the most recommended gentle techniques, and one of the least studied — a PubMed search returns nothing. How to do it, why it fails when it fails, and what to switch to.
Split nights: why your baby is awake at 2am for an hour
A content, chatty baby awake for an hour in the middle of the night is not hungry or teething — they have run out of sleep pressure. Why it happens and how to close it.
Cat napping: why naps are 30 minutes and how to extend them
A 35-minute nap is usually one complete sleep cycle, not a failed nap. Why infant cycles are so short, when short naps genuinely need fixing, and what actually works.
Wake window stacking: why the last one should be longest
Wake windows across a day are not equal. Sleep pressure builds with time awake, so the stretch before bed decides how the night goes — and it should be the longest of the day.
