Published by Actually Sleeping · Reviewed by Dr. Samantha Abrahamson, PharmD · Review policy · Updated 2026-11-10

What is a good sleep schedule for a 3 month old?

At 3 months most babies take 4 naps (some 3) and, as a rule of thumb, stay awake about 75 minutes to 2 hours. Total sleep varies widely; there is no official hour target under 4 months. Bedtime moves earlier, to roughly 7:30–8:30 p.m., and many babies still feed 1–3 times overnight.

What is typical at 3 months

Nights often get a little more organized at 3 months while naps stay unpredictable. These are the common ranges.

Measure	Typical range
Total sleep per 24 hours	Varies widely; the AASM gives no recommendation under 4 months
What studies of healthy babies found	Average 13.6 hours from 3 months, with a normal spread of about 9 to 18 hours (Galland 2012)
Night sleep (common practice range)	10–12 hours, usually with feeds
Naps (common practice range)	3–4, totalling about 4–5 hours; the last is often a catnap
Wake windows (rule of thumb, not a research finding)	75 minutes to 2 hours, lengthening through the day
Night feeds	Commonly 1–3 a night. Whether to keep, reduce or drop night feeds is your pediatrician’s decision.

Rows marked AASM are the American Academy of Sleep Medicine recommendation, which the AAP supports. Rows marked Galland 2012 come from a systematic review of observational studies. The other rows are common practice ranges, not research findings. They describe an average baby; healthy babies sit on both sides of every one of them.

Your baby has now passed the 10-week birthday, which is when the Actually Sleeping guarantee clock starts. That matters because 3 months is when many parents realise a generic schedule is not working for their baby. Dr. Sam writes a plan around your baby’s feeds, naps and the way they currently fall asleep, with bootcamp-style coaching before night one.

What is changing developmentally

By about 3 months, melatonin and cortisol follow a day–night rhythm, so nights lengthen and bedtime settles earlier. Naps are the last piece to organize. Sleep onset also shifts from active sleep to quiet sleep around now, and the AAP says babies have regular sleep cycles from about 4 months, which is what parents often experience as the 4-month regression. How infant sleep cycles develop explains the change.

Why the average 3-month schedule often does not fit

The swaddle transition: it has to end at the first sign of rolling, and sleep often gets worse before it settles. See dropping the swaddle.
30-minute naps: still common, and the main reason clock times drift. See short naps.
Feeding to sleep for every sleep: normal now, and a common root of night waking later. See the feed-to-sleep association.
Sudden frequent waking: it may be the early edge of the 4-month sleep regression.

Each of these depends on the baby. The same schedule that settles one 3 month old leaves another overtired by 5 p.m.

Safe sleep at 3 months

Stop swaddling at the first signs of rolling; use an arms-free sleep sack and no loose blankets.
Back to sleep for every sleep, on a firm, flat, empty surface, in your room for at least the first 6 months (AAP).

Is this age right for sleep training?

Foundations, yes. The AAP’s parent site advises that from 4 months babies go to bed drowsy rather than already asleep, so the next few weeks are a natural time to build toward that. Actually Sleeping works with families at this age with night feeds left in place and feeding decisions left to your pediatrician. We guarantee that your baby will sleep 8–12 hours through the night within 14 days of consistent, correct implementation of your sleep plan. Parents of babies this age share their results on our newborn to 3 month reviews. See also the best age to sleep train. Book a free consultation to get a plan written for your 3 month old.

Want this fixed for your baby?

Actually Sleeping is 1:1 coaching: a sleep plan written for your baby by Dr. Sam, bootcamp-style coaching before the first night, and daily check-ins until it is working. 700+ families coached, 129 video reviews, and a written guarantee: 8–12 hours through the night within 14 days, or a full refund.

Book your free consultation → See what families say

Frequently asked

How many naps should a 3 month old take?

Usually 4, sometimes 3 if naps run long, as a common pattern. In studies, babies 0 to 5 months averaged about 3 daytime sleeps, from about 1 to 5. The right number for your baby depends on nap length and feeds.

What is a good bedtime for a 3 month old?

As a common rule of thumb, between about 7:30 and 8:30 p.m. Where it should sit for your baby depends on how the last nap goes, which is one of the things Dr. Sam sets in a custom plan and adjusts during daily check-ins.

Can a 3 month old sleep through the night?

A few sleep a long stretch; many still need 1–3 feeds. Both are normal. Night-feed decisions depend on growth and belong to your pediatrician. A plan from Actually Sleeping never forces night feeds out.