Why Is My Newborn Not Sleeping During The Day? The Reason

Your newborn is not sleeping during the day because their internal sleep-wake cycle — called the circadian rhythm — has not developed yet. Newborns are born without a mature sense of day and night. Their sleep is driven by hunger and basic needs, not by light or dark. This is normal biology, not a problem to fix. Most babies begin to develop a day-night rhythm around 6 to 8 weeks of age.

What Is Normal Newborn Sleep During the Day?

Newborns sleep a lot — about 14 to 17 hours in a 24-hour period according to the American Academy of Sleep Medicine. But they do not sleep in long stretches. They wake every 2 to 3 hours to eat.

Daytime sleep is usually broken into short naps lasting 30 minutes to 2 hours. Some newborns sleep more during the day than at night. This is normal. Their tiny stomachs empty quickly and they need frequent feeding. Hunger is the main reason they wake.

If your newborn is awake for long stretches during the day and seems fussy, that is also normal for some babies. Every baby is different. The range of normal newborn sleep is wide.

Why Is My Newborn Not Sleeping During the Day? The Main Reasons

The biggest reason is an underdeveloped circadian rhythm. This internal clock does not start working until about 6 weeks. It is not fully established until 3 to 4 months. Before that, your baby cannot tell day from night biologically.

Other common reasons include:

• Hunger. Newborns need to eat every 2 to 3 hours. A full belly helps them sleep. An empty one wakes them.
• Discomfort. A wet or dirty diaper, being too hot or too cold, or clothing that is too tight can keep a baby awake.
• Overstimulation. Too much noise, light, or activity can make it hard for a newborn to settle.
• Gas or reflux. Some babies have trouble digesting milk and feel uncomfortable after feeding.
• Growth spurts. Around 2 to 3 weeks and again at 6 weeks, babies may be more wakeful and want to cluster feed.

Research published in Pediatrics found that newborns who are breastfed wake more frequently than formula-fed babies. This is because breast milk digests faster. It is not a sign of a problem.

What the Research Actually Shows About Newborn Daytime Sleep

Studies have found that newborn sleep patterns are highly individual. A 2018 study in Sleep Medicine Reviews looked at over 1,000 infants. The researchers found that total sleep time varies widely among healthy newborns. Some slept 11 hours a day. Others slept 19 hours a day. Both were normal.

There is no strong evidence that any specific method can make a newborn sleep more during the day. Swaddling, white noise, and rocking can help some babies settle. But they do not increase total sleep time. They just help the baby fall asleep faster.

The CDC states that newborns should sleep on their backs on a firm flat surface with no loose bedding. This is the safest sleep position. It reduces the risk of sudden infant death syndrome (SIDS). Safety always comes before sleep duration.

What Actually Helps Newborns Sleep Better During the Day

You cannot force a newborn to sleep. But you can create conditions that make sleep more likely. These strategies are supported by pediatric guidelines and parental experience.

• Watch for sleepy cues. Rubbing eyes, yawning, fussiness, and looking away are signs your baby is tired. Put them down to sleep when you see these cues. Waiting too long can lead to an overtired baby who fights sleep.
• Keep daytime feedings calm. Feed your baby in a quiet room with dim light. This helps them associate feeding with rest.
• Use gentle motion. Rocking, swaying, or a baby swing can help some babies settle. The motion mimics the womb.
• Try white noise. A steady sound like a fan or a white noise machine can block out household noise and help a baby stay asleep.
• Swaddle your baby. Many newborns feel secure when wrapped snugly. Stop swaddling once your baby shows signs of rolling over.

None of these techniques work for every baby. Some babies simply need to be held to sleep. That is normal. It does not mean you are doing anything wrong.

Common Misconceptions About Newborn Daytime Sleep

There are many viral claims about newborn sleep that are not supported by evidence. Here are a few to ignore.

Claim: “You can train a newborn to sleep on a schedule.” False. Newborns are too young for sleep training. Their brains are not developed enough to learn sleep associations. Sleep training is not recommended before 4 to 6 months by the American Academy of Pediatrics.

Claim: “Keeping your baby awake during the day helps them sleep at night.” This is widely claimed but strong evidence is limited. In fact, overtired babies often sleep worse. A baby who misses naps may have a harder time settling at night.

Claim: “Breastfed babies need to eat less often than formula-fed babies.” The opposite is true. Breast milk digests in about 1.5 to 2 hours. Formula takes longer. Breastfed babies typically wake more often to feed.

Some people report that gripe water or gas drops help babies sleep. There is no clinical evidence that these products increase total sleep time. They may help with discomfort from gas, but they are not sleep aids.

When to Talk to Your Pediatrician

Most newborn daytime wakefulness is normal. But there are times when a doctor should be involved.

Call your pediatrician if your baby:

• Is difficult to wake for feedings
• Sleeps significantly less than 11 hours total in 24 hours
• Has fewer than 6 wet diapers in 24 hours
• Is not gaining weight as expected
• Seems uncomfortable or in pain when awake
• Has a fever or other signs of illness

These signs could indicate a medical issue that needs attention. Trust your instincts. If something feels wrong, ask your doctor. You are not being overly cautious.

Comparison: Newborn Sleep Patterns at Different Ages

These are averages. Your baby may be on the higher or lower end of the range. Both can be normal. The key is whether your baby is feeding well, gaining weight, and producing enough wet diapers.