Lulla Blog
Guides, tips and accessible science about little ones' sleep. Read by real parents, in 5 minutes per article.
Sleep training methods: Ferber, cry it out, the chair and what studies show
Sleep training with and without crying: what the Ferber method and a bedtime routine change, when to start, how long it takes and what studies show.
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How much do newborns sleep? What's normal by age and when it's too much
How much do newborns sleep? Experts recommend 14–17 hours, but 11–19 can be fine. What was measured, when to wake them to feed, and the warning signs.
White noise for newborns and babies: what's proven, how loud, how long
White noise for newborns: the 1990 randomized trial measured falling asleep within 5 minutes, not a whole night. Volume, distance and duration, with numbers.
Newborn colic: how long it lasts, when it ends, what helps
Newborn colic: the six-week peak does not hold up. What 8,690 babies show about how long it lasts, and what the studies say about drops, teas and probiotics.
Toddler night terrors vs. nightmares: how to tell them apart
Night terrors or a nightmare? The time of night tells you which. Why 18 months is the peak in babies, why it's far milder than you'll read, and the one cause worth checking.
The 4 month sleep regression — and the other 7 ages
4 month, 8 month and 18 month sleep regression: which ages move the schedule, which only shift a band, and which move nothing. All eight ages in one table.
When your newborn won't sleep: what to check, in order
Your newborn won't sleep, day or night, and nothing settles them: the three questions that separate a real problem from a schedule problem, what the wake-up time tells you, and the 6 windows where sleep breaks on its own.
How many naps by age: the full chart and the 4 nap drops
How many naps your baby needs month by month, how long each lasts and when the next one goes — plus the four nap drops and why 30-minute naps are often fine.
Wake windows by age: the full chart from newborn to 2 years
How long your baby can stay awake each month, from 45 minutes at birth to 6 hours at 2 years. 25-month chart, the signs you got it wrong and the two nap transitions.
From 2 naps to 1: when it happens and how to do it without chaos
When your baby drops from two naps to one, the 5 signs it's time, and how to get through the transition without losing your nights.
Can I give my baby water? Not before 6 months
Why babies under 6 months don't need water, what water intoxication is, what to do in a heatwave, and when you can actually start offering water. Based on WHO and AAP guidance.
Baby waking up at 5 AM? Why it happens and what to do
Baby waking up at 5 AM? The most common causes of early morning wakings and a 4-step plan to push wake-up time to a decent hour.
Baby tiredness signs: how to read them before the crying starts
Baby tiredness signs appear 10-15 minutes before crying. A stage-by-stage guide and age-based wake windows for the perfect bedtime moment.
How to share sleep tracking with your partner
How to share sleep tracking with your partner or grandparents. The Lulla guide to collaborative monitoring of your baby's sleep.
Why bedtime stories help babies sleep better
Why bedtime stories help babies sleep better. Studies, techniques, and recommended stories for restful sleep.
What the sleep score means and how to improve it
What your baby's sleep score means and how to improve it. Understand the indicators of sleep quality and optimize your nighttime routine.
How to build the perfect sleep routine for your baby
How to build the perfect sleep routine for your baby. A step-by-step guide for parents, with science-backed tips for restful nights.