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

Sleep at 1 month: what’s normal, what’s hard, and when to get help

At 1 month, sleep is still scattered and short, and evening crying often builds. The AAP says fussing usually peaks at about 3 hours a day by 6 weeks, then eases. There is no official sleep target before 4 months. This is also the start of the highest-risk window for SIDS, so safe sleep for every sleep matters most now.

What is changing in weeks 4 to 8

Your baby is waking up to the world. By 2 months, the CDC lists milestones such as calming down when spoken to or picked up, looking at your face, and smiling when you talk or smile. Those first social smiles make evenings more fun and also more stimulating, which is part of why the late-day stretch gets harder.

The body clock is still forming. Night and day begin to separate a little, but long, predictable night sleep is not expected yet. Tummy time also matters this month: the AAP suggests building up to 15 to 30 minutes a day, in short sessions, by 7 weeks. Awake, supervised tummy time is the counterweight to back sleeping.

Crying and sleep at 1 to 2 months	What the AAP and studies report
Peak of fussing	Usually about 3 hours a day by 6 weeks
Usual time of day	Between 6 p.m. and midnight
When it eases	Down to 1 or 2 hours a day by 3 to 4 months; colicky crying can last until 6 months
Total sleep, 0 to 2 months	Average 14.6 hours; normal spread about 9 to 20 hours (review of observational studies)
Official hours target	None under 4 months (AASM)

Weeks 4 to 8 are often the hardest stretch for parents: crying builds, nights are still broken, and the advice online contradicts itself. Actually Sleeping works with families from this stage. Dr. Sam writes a plan for your baby that starts with foundations and leaves night feeds exactly as your pediatrician wants them.

What parents find hardest

The evening witching hours. Cluster feeding and crying from late afternoon are typical, and the AAP says colicky fussing tends to fall between 6 p.m. and midnight.
Catnaps that last one cycle. Short daytime sleeps are expected at this age. They are not a sign you are doing something wrong.
Waking when put down. Many babies startle awake on the transfer to the bassinet. It is one of the most common reasons parents end up holding every nap.
Sleep debt in parents. Weeks of broken nights add up. If you think you might doze while holding your baby, put your baby down in their own flat, empty sleep space first.

Safe sleep matters most right now

The NICHD Safe to Sleep campaign reports that most SIDS deaths happen between 1 and 4 months of age, and that 72% occur in months 1 to 4. Everything below applies to every nap and every night.

Back to sleep, on a firm, flat surface, with nothing in the sleep space. The AAP says the side is just as risky as the stomach.
Room-share without bed-sharing. Never sleep with your baby on a sofa or armchair.
Pacifiers reduce SIDS risk even if they fall out after your baby is asleep. If you breastfeed, the AAP suggests waiting until breastfeeding is established.
If you swaddle, stop as soon as your baby shows any sign of trying to roll. The AAP notes some babies start working on rolling as early as 2 months.

Night feeds

Feeding on cue at night is still normal at this age. How often to feed, and whether a longer stretch is fine, is your pediatrician’s decision based on growth. Do not stretch or drop feeds on your own.

When to talk to the pediatrician

Any rectal temperature of 100.4°F (38°C) or higher: the AAP says call immediately for babies 3 months or younger.
Crying that changes in sound, comes with vomiting, fever or poor feeding, or feels like pain. The AAP advises checking with your pediatrician first to rule out a medical cause.
Noisy, laboured breathing in sleep, or pauses longer than 20 seconds (call 911).
You feel depressed or unable to cope. The AAP asks parents to tell their own doctor, who can suggest help.

Foundations now, with a plan for your baby

Foundations can start now. Generic tips tend to fail at this age because every 1 month old feeds, fusses and settles differently. Actually Sleeping writes the foundations into a plan for your baby, with daily 1:1 check-ins so it changes as your baby does. Night feeds are never forced out; feeding decisions stay with your pediatrician. The 14-day guarantee clock starts at your baby’s 10-week birthday: 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 young babies describe their experience on our newborn to 3 month reviews. See also the newborn rhythm guide and pacifiers and sleep. A free consultation with Dr. Sam is the place to start.

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Frequently asked

Why is my 1 month old so fussy in the evening?

Evening fussiness is common. The AAP says it tends to happen between 6 p.m. and midnight and that fussing usually peaks at about 3 hours a day by 6 weeks before easing by 3 to 4 months. Check with your pediatrician first to rule out a medical cause.

Should my 1 month old be sleeping through the night?

No. There is no official sleep target before 4 months, and the AAP says regular sleep cycles do not appear until about 4 months. Short stretches and night feeds are normal now. Your pediatrician decides how often your baby should feed.

Is SIDS risk highest at 1 month?

The risk window is now. The NICHD Safe to Sleep campaign reports most SIDS deaths happen between 1 and 4 months, with 72% in months 1 to 4. Back sleeping, an empty flat surface and room-sharing without bed-sharing all lower risk.