Journal/Guides/Sleep Guides

Sleep Guides

20 articles to explore

Tired mother holding awake baby during 4 month sleep regression at night
Sleep Guides

4 Month Sleep Regression: Why It Happens and How to Get Through It

The 4 month sleep regression marks a permanent shift in your baby’s sleep architecture as their brain matures to produce adult-like cycles. This article explains the neuroscience, identifies signs, an

Jeehoo Jeon·May 10, 2026·9 min read
Tired Korean mother holding fussy 9-month-old at night, showing sleep regression signs
Sleep Guides

9 Month Sleep Regression Signs: What’s Happening and How to Get Through It

A 9 month sleep regression isn’t a setback—it’s your baby’s brain working through major developmenta

Jeehoo Jeon·11 min read
Tired Korean mother at 2am during 18 month sleep regression toddler struggles
Sleep Guides

18 Month Sleep Regression: Why Your Toddler Stopped Sleeping & What Actually Works

The 18 month sleep regression toddler stage isn’t a parenting failure — it’s a sign your child’s bra

Jeehoo Jeon·10 min read
Tired Korean mother holding sleeping baby during jet lag recovery in hotel room
Sleep Guides

Baby Jet Lag: A Parent’s Guide to Adjusting Sleep Schedules After Travel

Baby jet lag disrupts your infant’s developing circadian rhythm when crossing time zones, causing sl

Jeehoo Jeon·12 min read
Korean mother reading bedtime story to toddler in soft evening light
Sleep Guides

Toddler Bedtime Routine: A Step-by-Step Guide for Nights That Actually Work

A toddler bedtime routine trains the brain to recognize sleep signals by releasing melatonin on sche

Jeehoo Jeon·12 min read
Tired Korean mother comforting 8 month sleep regression baby at night
Sleep Guides

8 Month Sleep Regression: Why Your Baby’s Sleep Changed & How to Handle It

The 8 month sleep regression is a sign of healthy cognitive and motor development, not a setback. Un

Jeehoo Jeon·13 min read
Tired Korean mother at 3am during 12 month sleep regression, sitting on bed in warm lamplight
Sleep Guides

12 Month Sleep Regression: Why Your Baby Won’t Sleep & How to Survive It

The 12 month sleep regression is a sign of healthy development, not a step backward. Learn what caus

Jeehoo Jeon·11 min read
Korean mother comforting toddler during night in softly lit bedroom
Sleep Guides

Toddler Night Terrors: What They Actually Are and How to Help Your Child

Toddler night terrors are intense partial arousals during deep sleep that cause screaming and thrash

Jeehoo Jeon·14 min read
Tired Korean mother comforting baby in crib at night, soft lamp light illuminating bedroom
Sleep Guides

Baby Not Sleeping Through the Night at 6 Months: A Real Parent’s Guide to What Actually Works

A baby not sleeping through the night at 6 months is usually normal development, not a problem to fi

Jeehoo Jeon·14 min read
Korean mother holding sleeping newborn in morning light during newborn sleep routine
Sleep Guides

Newborn Sleep Routine: How to Build One That Actually Works (Even When Nothing Feels Predictable)

A newborn sleep routine isn’t a rigid schedule—it’s a flexible rhythm built on understanding your ba

Laeeka Edries·15 min read
Exhausted mother at 3am during 3 month sleep regression, sitting by baby's bassinet in dim bedroom light
Sleep Guides

3 Month Sleep Regression: Why Your Baby’s Sleep Is Falling Apart (And How to Survive It)

The 3 month sleep regression marks when your baby’s sleep architecture matures from chaotic newborn

Laeeka Edries·14 min read
Tired mother holds awake baby at night during the 4-month leap
Sleep Guides

The 4-Month Leap: What Your Baby Is Learning (and Why Sleep Goes Sideways)

The 4-month leap is a fundamental rewiring of your baby’s brain where object permanence, cause-and-e

Jeehoo Jeon·11 min read
Exhausted mother holding sleeping one month old at night, soft lamp light, realistic bedroom
Sleep Guides

One Month Old Sleep Schedule: What’s Normal and How to Build a Routine That Works

A one month old sleep schedule isn’t a schedule yet — it’s 14–17 hours broken into short, unpredicta

Jeehoo Jeon·15 min read
Mother and baby, Sleep Training Methods: A Parent’s Guide to Every
Sleep Guides

Sleep Training Methods: A Parent’s Guide to Every Approach (And What Actually Works)

Sleep training is the process of helping your baby learn to fall asleep independently, and the right

Jeehoo Jeon·16 min read
Tired mother on bed at night considering cry it out method for baby sleep training
Sleep Guides

Cry It Out Method: Does It Work and Is It Actually Safe for Your Baby?

The cry it out method is a sleep training approach with several variations, backed by research showi

Jeehoo Jeon·14 min read
Mother holding sleepy 1-month-old baby on shoulder during wake window, natural afternoon light
Sleep Guides

1 Month Old Wake Window: Why This Changes Everything About Your Baby’s Sleep

A 1 month old wake window is typically 45 to 60 minutes of awake time before sleep pressure builds.

Jeehoo Jeon·15 min read
3 Month Old Baby: Milestones, Sleep & Development (The Real Talk)
Baby: 3–12 Months

3 Month Old Baby: Milestones, Sleep & Development (The Real Talk)

3 month old milestones got you spiraling? Here’s the real breakdown of what your baby should be doin

Jeehoo Jeon·9 min read
2 Month Old Milestones: Sleep, Development & What Nobody Actually Warned You About
Newborn: 0–3 Months

2 Month Old Milestones: Sleep, Development & What Nobody Actually Warned You About

Your baby is two months old and 2 month old milestones are happening fast — even when it doesn’t fee

Laeeka Edries·9 min read
1 Month Old Milestones: Sleep, Development & What to Actually Expect
Newborn: 0–3 Months

1 Month Old Milestones: Sleep, Development & What to Actually Expect

Everything you need to know about 1 month old milestones — from sleep schedules (or lack thereof) to

Soyeon Park·9 min read
The Best Baby Monitors for Tracking Sleep and Breathing (And the Real Talk You Need Before You Buy) | Onzenna
Sleep Guides

The Best Baby Monitors for Tracking Sleep and Breathing (And the Real Talk You Need Before You Buy)

The best baby monitors for tracking sleep can tell you a lot — but there’s real talk you need to hea

Soyeon Park·11 min read