The Honest Summary
Babies don't sleep through the night because their bodies aren't built for it. Newborns wake every 50 minutes by design. Sleep cycles mature around 4 months — but that's when many "good sleepers" suddenly stop sleeping (the famous 4-month regression). Most babies are not reliably sleeping through until 6-9 months. Some take much longer. None of this is your fault.
Topics
Sleep Basics
Biology, cycles, age timelines, what's actually normal.
Sleep Regressions
4-month, 8-month, 12-month, 18-month, 2-year — what causes each, how long they last.
Sleep Training Methods
Ferber, cry-it-out, no-cry, chair method — honest comparison of evidence.
Environment & Routine
Room temperature, white noise, swaddling, bedtime routines, wake windows.
Parent Survival
Sleep deprivation reality, shift sleeping, when to call for help.
Tools
⏰ Wake Window Calculator
Enter baby's age — get recommended wake windows, daily naps, and total sleep target.
📓 Sleep Diary
Quick log of bedtime, wake-ups, and total sleep. Patterns emerge after a week.
⌛ Soothing Timer
Graduated check-in intervals (Ferber 3/5/10, gentler 1/3/5). Bell at intervals.
Latest Articles
The 12-Month Sleep Regression: Walking Wakes Them Up
It's 3 a.m. and the baby monitor lights up. You watch, bleary-eyed, as your almost-toddler pulls to stand in the crib, takes a few lurching steps against the rail, sits down hard, and starts crying.…
The 18-Month Regression: When Bedtime Becomes a Power Struggle
It's 8:47 pm. You've done the bath, the books, the song — the same routine that worked beautifully three weeks ago. Now your 18-month-old is standing in the crib, red-faced, hurling their lovey onto…
The 2-Year Regression: Nightmares Begin
It's 2:47 a.m. and your two-year-old is screaming for you — not the hungry newborn cry you survived before, but something new: "Monster! Monster!" You rush in, and they're sitting up, eyes wide, arms…
The 4-Month Sleep Regression: Why It's Actually a Maturation
It's 3 a.m. and your baby — the one your in-laws kept calling "such a good sleeper" — has woken up for the fourth time tonight. Two weeks ago, she was doing four-hour stretches. Now it's every 90…
The 8-10 Month Regression: Object Permanence and Separation Anxiety
It's 2 a.m. and your baby — who had, against all odds, started sleeping in four- or five-hour stretches — is screaming like you've vanished off the face of the earth. You haven't changed anything. No…
Five Baby Sleep Myths That Make Tired Parents Feel Worse
It's 3 a.m. and you're scrolling your phone with one hand, baby on your chest, reading advice that seems to contradict everything you tried yesterday. Somewhere in your feed, someone's cousin's baby…
The Bedtime Routine That Actually Helps Babies Sleep
It's 7:43 pm and you've been doing this for forty-five minutes. The bath, the lotion massage, the two books, the three songs, the white noise machine ritual, the specific stuffed animal placement,…
Light Matters: When Babies Start Caring About Darkness
It's 5:47am in late June, your seven-month-old is wide awake and chattering, and you're calculating how this is technically only four and a half hours of sleep for you. The sun has been up for nearly…
If You're Drowning Right Now
Sleep deprivation past a certain point is a medical issue, not a parenting problem. Signs to call someone today:
- You feel disconnected from your baby, or don't enjoy them at all
- You're having intrusive thoughts about harming yourself or your baby
- You haven't slept more than 2 consecutive hours in 5+ days
- You're afraid you'll fall asleep driving
Resources by country:
- United States: Postpartum Support International — call 1-800-944-4773 or text "Help" to 800-944-4773
- United Kingdom: PANDAS Foundation — 0808 1961 776
- Germany: Schreiambulanz at most kids hospitals; also Schatten und Licht e.V.
- Anywhere: Your country's emergency / suicide hotline if it's that bad. It's that worth using.
About This Site
No ads, no affiliate links, no sponsored content. Written by a parent who survived four separate sleep regressions and read too many pediatric sleep papers. All claims have a real citation behind them, but this site is not medical advice — pediatric concerns go to a pediatrician.