The Kiri Sleep Hub
Baby Sleep, Solved.
Free interactive tools and answers aligned with trusted sources like the American Academy of Pediatrics, American Academy of Sleep Medicine, National Sleep Foundation, and the CDC.
Most baby-sleep problems boil down to four things.
If you Googled your way here at 2am because your baby is fighting sleep, waking up at 4am, or taking 35-minute naps that wreck the rest of the day, the underlying cause is almost always one of these: the wake window is off, the bedtime routine isn't predictable, sleep associations aren't set up for self-soothing, or there's a regression you haven't named yet.
This hub is built around those four causes. The interactive tools below let you calculate wake windows, predict naps, build a daily schedule, and find a sleep training method that fits your family. The pillar pages below the tools cover AAP-aligned safe sleep, every common regression from 3 months through 3 years, and a 50-term glossary for the language sleep researchers use that the rest of us do not.
All of it is pediatric-grade and free. If you want the tools that actually learn your baby's individual patterns and adapt as she grows, that's what the Kiri app is for. Either way, start below.
Interactive sleep tools
Free, age-aware tools for the questions parents ask most often.
Free email course
The 7-Day Baby Sleep Reset
One short email a day for a week, walking you through the foundations of better baby sleep. Wake windows, bedtime routine, what to fix first, when to call your pediatrician. Real fixes, not fluff. Unsubscribe anytime.
Sleep articles by age
Pick your baby's age band to see every sleep-related article in the Kiri Journal filtered to that age. Multiple articles per card, not just one.
Newborn (0-3 mo)
Wake windows, day-night confusion, witching hour, safe-sleep basics.
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3-6 months
The 4-month regression, sleep training readiness, longer night stretches.
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6-12 months
Two-nap days, sleep training, separation anxiety, crib transitions.
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1-2 years
The 2-to-1 nap transition, bedtime resistance, sleep regressions.
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2-3 years
Crib to bed, bedtime fears, potty training and sleep.
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3-5 years
Dropping the nap, nightmares vs. night terrors, preschool transitions.
See all articles →
Pillar references
Long-form, deeply-sourced reference pages for the topics every parent comes back to.
Want sleep features that learn your baby?
The tools on this page use age-based averages. In the Kiri app, NapGenius and DreamGenius learn your baby's actual patterns over two weeks then adapt to her, and an AI Sleep Specialist is available 24/7 for the questions a calculator can't answer.