SmartHarmony AI
Understanding wake windows
The single most useful idea in early sleep: how long your baby can happily stay awake between sleeps, how to read the tired cues before the overtired meltdown, and how those windows stretch as your baby grows. Master this one and most of the rest falls into place.
Read the guide →Newborn to six months, month by month
A calm snapshot of what tends to change each month — sleep, feeding, and development — with the one or two things genuinely worth acting on. Ranges are typical, not targets.
Deep dives on the things that matter
Thorough, illustrated walkthroughs on sleep, feeding, and safety — each one a proper read, not a listicle.
Understanding wake windows
How long your baby can happily stay awake — and how to read the cues before overtired hits.
Wake windows calculator
Pick your baby's age and enter the last wake-up time to see when the next nap is likely.
Building a calm bedtime routine
A short, predictable wind-down that teaches your baby's brain that sleep is coming.
When naps change
Why nap needs shrink over time, the common transition points, and how to ease each one.
Riding out a sleep regression
Why settled sleep unravels around big developmental leaps — and how to get through it.
Starting solids, gently
Readiness signs, first foods, textures, allergens, and letting your baby lead the way.
Safe sleep, from first principles
The simple, evidence-based setup that makes every sleep — night or nap — as safe as possible.