What’s Normal for Baby Sleep

The Most Important Thing to Know

There is no “should” when it comes to baby sleep.

Every baby is different. What’s normal for one baby might not be normal for another. And what you see on social media — babies sleeping 12 hours straight at 8 weeks — is the exception, not the rule.

This page gives you general guidelines, but YOUR baby is the expert on YOUR baby’s sleep.


Wake Windows by Age

Wake windows are the time your baby can comfortably stay awake between sleeps. These are averages — your baby might need more or less.

AgeWake Window
0-8 weeks45-60 minutes
2-3 months60-90 minutes
3-4 months90 minutes – 2 hours
5-6 months1.5-2.5 hours
7 months1.5-2.75 hours
8 months2-3 hours
9 months2.5-3.5 hours
10-12 months2.5-4 hours
12-18 months3-5 hours

Watch your baby, not the clock. Sleepy cues are more reliable than wake windows.


Sleepy Cues

Your baby will tell you when they’re tired. Look for:

Early cues (act on these): – Red around eyes or eyebrows – Eyes look glossy or sleepy – Staring into space – Quieter than usual – Rubbing face into your shoulder – Clingy or wanting to be held – Rooting or sucking on hands

Late cues (you may have missed the window): – Yawning – Rubbing eyes – Fussiness – Crying – Hyperactivity – Arching back


Night Waking by Age

Newborn (0-3 months): Waking every 1-3 hours is completely normal. Babies this age need frequent feeds, have small stomachs, and haven’t developed a circadian rhythm yet.

3-6 months: Many babies still wake 2-4+ times per night. The “4-month sleep progression” often causes increased waking as sleep cycles mature.

6-9 months: 1-3 wakings is common. Separation anxiety peaks around 8-9 months and can cause more waking.

9-12 months: Many babies still wake 1-2 times. Some wake more. Developmental milestones (crawling, standing, walking) often disrupt sleep.

12-18 months: Some babies sleep longer stretches. Many still wake 1-2 times. Separation anxiety peaks again around 12 and 18 months.

The truth: Sleeping through the night (defined as 6-8 hours) is a developmental milestone, not a skill you can teach. Many babies don’t consistently sleep through the night until 2-3 years old — and that’s normal.


Naps by Age

AgeNumber of NapsTotal Day Sleep
0-3 months4-6+ (irregular)4-8 hours
3-6 months3-43-5 hours
6-9 months2-32.5-4 hours
9-12 months22-3 hours
12-18 months1-22-3 hours
18+ months11-2.5 hours

Note: Short naps (30-45 minutes) are biologically normal for babies under 6 months. If your baby wakes happy, they got enough sleep.


Nap Transitions

4 to 3 naps: Around 4-5 months 3 to 2 naps: Around 7-9 months 2 to 1 nap: Around 13-18 months (try to hold onto 2 naps as long as possible)

Signs baby is ready to drop a nap: – Fighting the last nap consistently for several days – Naps are getting later and pushing bedtime too late – Baby seems fine with longer wake windows


Sleep Progressions

Sleep “regressions” are actually progressions — signs your baby is developing normally.

4-month progression: – Sleep cycles maturing – More aware of surroundings – Learning to roll – Often an increase in waking – Can last several weeks

6-month progression: – Sitting, rolling, or other new skills – Growth spurt – Introduction of solids may affect digestion – Usually lasts about 2 weeks

8-9 month progression: – Separation anxiety peaks – Crawling, pulling to stand – Object permanence developing (baby knows you exist when they can’t see you)

12-month progression: – Walking, talking, huge developmental leap – Separation anxiety peaks again – May resist naps

18-month progression: – Language explosion – Big emotions – Nap transition – Independence vs. connection battles


What’s NOT Normal (Red Flags)

While most sleep challenges are normal, some warrant investigation:

See: www.islagrace.ca/red-flags


The Bottom Line

Your baby is probably normal.

The wakings, the short naps, the needing to be held, the nursing to sleep — it’s all within the range of normal human infant sleep.

You’re not doing anything wrong.


For deeper understanding: https://islagrace.ca/sleep-without-sleep-training/

For personalized support: https://islagrace.ca/sleep-coaching/

Use code SLEEP10% for 10% off any course.