Skip to content
My WebMD Sign In, Sign Up

Health & Baby

Font Size

Most Babies Sleep Through Night at 3 Months

Study Shows 3 Months Is Most Likely Age for Babies to Sleep From 10 p.m. to 6 a.m.

Second Opinion

The new research adds some additional data to previous research and conventional wisdom, says Judith Owens, MD, MPH, associate professor of pediatrics at Alpert Medical School at Brown University and director of the pediatric sleep disorders clinic at Hasbro Children's Hospital, Providence, R.I.

Sleep consolidation, she tells WebMD, "is an important developmental 'sleep milestone' occurring in the first four months of life."

"While two months is perhaps a bit earlier than typically predicted for 'sleeping through the night,' the findings in general are in agreement with previous studies," she says.

Common wisdom has it that an infant will begin sleeping through the night at around age 3 months, Owens says. Before that, short periods of sleep, typically three or four hours, interspersed with short periods of wakefulness, two hours or so, are normal. "At around three months we start to see this ability to consolidate sleep."

Using the criteria of 10 p.m. to 6 a.m., she says, is more helpful as it is more practical for most parents.

1|2

Baby's First Year Newsletter

Because every week matters, get expert advice and facts on what to expect in your baby's first year.

Today on WebMD

mother on phone holding baby
When you should call 911.
Mother with baby
Unexpected ways your life will change.
 
baby acne
What’s normal – and what’s not.
baby asleep on moms shoulder
Help your baby get the sleep he needs.
 

mother holding baby at night
ARTICLE
mother with sick child
QUIZ
 
baby with pacifier
VIDEO
Track Your Babys Vaccines
TOOL
 
Baby Napping 10 Dos And Donts
Slideshow
Woman holding feet up to camera
Article
 
Father kissing newborn baby
Article
baby gear slideshow
Slideshow