Infant Sleep: What to Expect at Every Stage

One of the most common questions new parents ask is, when will my baby sleep through the night? The truth is that newborn sleep looks nothing like adult sleep, and it takes time for healthy patterns to develop. Here is what to expect at each stage, so you know what is normal and when good sleep is likely on the way.

The Big Picture

During the first few months, babies do not have regular sleep patterns and need to wake frequently for feedings. Around 4 months, many babies begin sleeping longer stretches, though it is also common to hit a temporary sleep regression around this same age as their brains and sleep cycles mature. Breastfed babies often wake more frequently overnight since breast milk digests faster than formula, and that is completely normal. As babies grow, their shorter sleep cycles gradually become more organized, and their total sleep needs keep changing all the way through toddlerhood.

Every stage brings new milestones and, yes, some exhausting nights, but they are temporary. Give yourself grace and know you are doing an amazing job.

Newborn to 6 Weeks

• Frequent waking is normal. Newborns commonly wake every 2 to 3 hours to eat, day and night.
• Feeding drives the sleep cycle. Babies cycle through eating, sleeping, and diaper changes, which interrupts sleep.
• Weight gain comes first. In the first 10 to 14 days, babies are working to regain their birth weight, so parents may need to wake them for feeds.
• Longer stretches come gradually. Once birth weight is regained, most babies no longer need to be woken overnight, though breastfed babies often keep waking every 3 to 4 hours to eat.
• Newborns do not yet know day from night, their internal clock is still developing.
• Help build healthy habits by keeping daytime bright and active, making nighttime calm and dark, and putting your baby down drowsy but still awake to encourage self-soothing.

A Note on Safe Sleep

Always place your infant on their back on a firm, flat mattress, free of pillows, comforters, or bumper pads. Discontinue swaddling or arms-in sleep sacks as soon as your baby starts learning to roll over, typically between 2 and 4 months. Sofas, recliners, swings, and bouncers are not safe places for infants to sleep, if your baby falls asleep in a swing or bouncer, move them to their bassinet or crib.

6 Weeks to 4 Months

• Babies become more alert. Around 6 to 8 weeks, infants stay awake longer and enjoy more interaction.
• Sleep needs gradually decrease. Many babies drop one daytime nap.
• Longer nighttime stretches develop as sleep cycles mature.
• No need to wake for feedings unless your pediatrician has advised otherwise, let your baby sleep through these longer stretches.
• Keep placing your baby in the crib drowsy but still awake.

The Famous 4-Month Sleep Regression

Around 4 months, many babies start waking more often after previously sleeping longer stretches. This is a great time to start a bedtime routine if you have not already, since consistency helps babies build healthy sleep habits. Daytime naps may also become shorter or less predictable during this phase. This regression is not a setback, it is a normal sign of brain and sleep development, and better sleep typically returns as your baby adjusts.

4 to 8 Months

• Night wakings can still happen, some babies continue to wake once or more, and that is a normal variation.
• Naps consolidate. Around 6 to 8 months, many babies shift to 2 to 3 naps a day.
• Every baby develops on their own timeline, some reach these milestones earlier or later than others.
• Separation anxiety often develops around 6 to 8 months, which can bring on another sleep regression if your baby wakes and realizes you are not there. Try soothing back to sleep without a feeding, unless your pediatrician has recommended continuing nighttime feeds.

9 to 12 Months

• Sleep routines are usually well established by 9 months, with a consistent daytime and nighttime schedule.
• Most babies take a morning and afternoon nap.
• Another regression is common between 8 and 10 months as babies hit major developmental milestones.
• Teething, crawling, pulling up to stand, and new skills can temporarily disrupt sleep or shorten naps.
• Staying consistent with bedtime routines helps babies bounce back to their normal patterns faster.

Toddler Sleep: 12 to 24 Months

• Sleep routines may need adjusting now that you have an active toddler on your hands.
• Naps often reduce from two to one longer midday nap.
• Increased difficulty settling at bedtime can be a sign it is time to drop that second nap.

Toddler Bedtime Tips

A calming, consistent bedtime routine helps your child recognize it is time to sleep. Choose quiet activities beforehand, like reading a favorite story, listening to soft music, or taking a warm bath, and avoid active play right before bed since it can make it harder to settle down. Aim for the same bedtime each night. A favorite comfort item, like a stuffed animal or special blanket, can also help your toddler feel secure and fall back asleep if they wake overnight, just be sure it is free of choking hazards like loose buttons, ribbons, strings, or removable stuffing.

Average Sleep by Age

Every baby’s sleep journey looks a little different, and that is completely normal. If you ever have questions about your little one’s sleep, growth, or anything in between, we would love to see you, no appointment needed to be seen.

Give us a call at (832) 844-1470, or stop by our easy to reach, fully accessible location at 1430 W. Grand Pkwy S, Katy, TX 77494. Our hours are built around when your family needs us most, Monday through Wednesday until 7:30 PM, Thursday and Friday until 5 PM, and Saturdays 9 AM to 4 PM. Even after we close, our after hours line connects you straight to one of our doctors, because little ones do not only need us during office hours.

Written by NP Rebecca