Skip to main content

Overtiredness: Why it Affects Your Baby’s Sleep and How to Prevent it

2 min readUpdated February 18, 2025
Mandy Treeby
Reviewed by
Chief Baby Sleep Consultant

Understanding Overtiredness

The early months with a baby often mean sleepless nights and long days. But as your baby grows and can sleep longer stretches, it’s crucial to put them to bed before they become overtired. This helps them fall asleep easily and get the restorative sleep they need to thrive.

Overtiredness is a common reason why babies struggle with sleep. Although it can take time to resolve, there are ways to get your baby back on track. Read on to learn how to prevent overtiredness and what to do if it’s affecting your baby’s sleep.

What is Overtiredness?

Ever noticed how you get a second wind if you stay up too late? That’s overtiredness in action. When your body is ready for sleep but you stay awake, stress hormones like cortisol and adrenaline kick in to keep you going. This makes it harder to relax and fall asleep.

For babies, overtiredness happens when they miss their wake window or skip sleep. An overtired baby can find it difficult to fall asleep, stay asleep, and may wake up early. Once a baby is overtired, it can be challenging to break the cycle.

How Do I Know if My Baby is Overtired?

There are several signs that can indicate if your baby is overtired:

  • Protesting sleep at bedtime or nap times

  • Waking up more frequently during the night

  • Being fussy after skipping a nap

  • Falling asleep at unusual times

  • Waking up unhappy

  • Waking up too early

  • Showing sudden bursts of energy around sleep times

These signs can be similar to those of sleep regression.

Why is Overtiredness So Common?

Sleep issues, including overtiredness, are common in a baby’s early months. Studies show that over a quarter of babies experience sleep problems in their first six months.

Until about 3-4 months of age, a baby’s circadian rhythm isn’t fully developed, making their sleep schedule unpredictable. Even after this period, sleep struggles can persist, especially if their sleep schedule is disrupted. Missing a sleep cycle can easily lead to overtiredness.

Once overtired, babies often struggle to fall asleep and may wake up frequently or early. This creates a challenging cycle where less sleep leads to more overtiredness.

How to Help Your Overtired Baby Sleep Better

Breaking the cycle of overtiredness can be tough, but it starts with reducing cortisol levels. Cortisol is a stress hormone that keeps you awake.

To calm your baby, try:

  • Rocking or swaying

  • Singing lullabies

  • Giving a gentle massage

  • Playing soothing music

  • Dimming the lights

A consistent bedtime routine helps signal to your baby that it’s time to sleep. Stick to familiar routines, even if your baby is overtired, to help them recognize sleep cues.

Avoid feeding your baby to sleep, as this can create a sleep association that’s hard to break. Instead, focus on soothing them in other ways.

The Importance of Early Bedtimes

An earlier bedtime is key to helping an overtired baby catch up on sleep. The most restorative sleep happens before midnight, so putting your baby to bed early can help them recover lost sleep and reset their circadian rhythm.

A later bedtime usually doesn’t help babies sleep longer and can actually lead to more overtiredness and light, disrupted sleep.

Preventing Overtiredness in Babies

Preventing overtiredness involves putting your baby to sleep at the right times according to their sleep cycles. Take this free 3-minute sleep assessment to determine the best bedtime for your baby.

The Smart Sleep Coach by Pampers™ app can help by notifying you when it’s time for your baby to sleep. The app also helps you identify your baby’s sleep cues to prevent missing wake windows, which can lead to overtiredness.

Daytime sleep is important for nighttime sleep. Skipping naps can backfire, leading to overtiredness and more difficulty falling asleep at night. If your baby shows signs of energy around bedtime, stick to the routine and avoid stimulating activities.

FAQS AT A GLANCE

One of the best ways to break the cycle is by putting your baby to bed earlier. Early bedtimes help them catch up on sleep, especially since the most restorative sleep occurs at the beginning of the night. Avoid introducing unhealthy sleep habits that could make it harder for your baby to become an independent sleeper.

Conclusion

Dealing with an overtired baby can be exhausting, but it’s a challenge that can be overcome. Consistency is key. Stick to your routine, aim for earlier bedtimes, and avoid introducing new sleep habits that could create further issues.

With patience and the right approach, you can help your baby break the cycle of overtiredness and get the sleep they need.

How We Wrote This Article The information in this article is based on expert advice from trusted medical and government sources, such as the American Academy of Pediatrics and the American College of Obstetricians and Gynecologists. Always consult medical professionals for full diagnosis and treatment.

About Mandy Treeby

Mom of two, co-founder of the Smart Sleep Coach and a Pediatric Sleep Consultant. In working with parents & babies around the world she wants to make quality baby sleep coaching available to all.

Related Articles

See more articles
See more articles
Slide 1 of 10
Baby Sleep Articles5 min read

Why an Early Bedtime Is Important to Babies and Toddlers

By Mandy Treeby

Baby's bedtime: discover the importance of sleep for babies and toddlers. Discover their changing sleep needs and the importance of a consistent routine.

Baby Sleep Articles5 min read

The Most Common Misconceptions about Baby Sleep

Understanding how babies sleep is one of the most important aspects of early parenting for both you and your baby. Part of knowing what to do is understanding common misconceptions about how babies sleep. Our expert tips will help you get a good night's sleep.

Baby Sleep Articles4 min read

Tips for Getting Baby Back on Schedule After Travel

By Mandy Treeby

Help your baby readjust to their sleep schedule and routine post-vacation with these expert tips and insights.

Baby Sleep Articles3 min read

How to Implement an Eat Play Sleep Schedule for Your Baby

By Mandy Treeby

Help your baby readjust to their sleep schedule and routine post-vacation with these expert tips and insights.

Baby Sleep Articles4 min read

What Is Sudden Infant Death Syndrome (SIDS)?

By Mandy Treeby

SIDS (sudden infant death syndrome) refers to the unexpected death of an infant, usually while asleep. Learn all about SIDS and its risk factors.

Baby Sleep Articles5 min read

Why Wake Windows Are More Important Than the Clock

By Mandy Treeby

Learn why wake windows are crucial for your baby's sleep. Discover how to use wake windows to optimize your child's sleep schedule and promote more restful sleep.

When Can Your Baby Sleep With a Blanket
Baby Sleep Articles4 min read

When Can Your Baby Sleep With a Blanket?

It’s best to wait until at least 12 months to cover your baby with a blanket at night. Find out when it's safe for your baby to sleep with a blanket.

Baby Sleep Articles5 min read

Why Your Baby Shouldn’t Sleep on Her Stomach

By Mandy Treeby

You may be wondering when babies can start sleeping on their stomachs. Find out the recommended age here, and how to ensure your baby sleeps safely.

Baby Sleep Articles5 min read

What to Do if Your Baby Only Sleeps When Held

By Mandy Treeby

Uncover when it’s okay to hold your baby when they are asleep and tips for how to get them to sleep in their crib.

Baby Sleep Articles4 min read

Helping Your Baby with Reflux Sleep

By Mandy Treeby

Uncover important information and tips on helping a young baby with acid reflux get the sleep they need.

Baby Sleep Articles5 min read

Why an Early Bedtime Is Important to Babies and Toddlers

By Mandy Treeby

Baby's bedtime: discover the importance of sleep for babies and toddlers. Discover their changing sleep needs and the importance of a consistent routine.

Baby Sleep Articles5 min read

The Most Common Misconceptions about Baby Sleep

Understanding how babies sleep is one of the most important aspects of early parenting for both you and your baby. Part of knowing what to do is understanding common misconceptions about how babies sleep. Our expert tips will help you get a good night's sleep.

Baby Sleep Articles4 min read

Tips for Getting Baby Back on Schedule After Travel

By Mandy Treeby

Help your baby readjust to their sleep schedule and routine post-vacation with these expert tips and insights.

Baby Sleep Articles3 min read

How to Implement an Eat Play Sleep Schedule for Your Baby

By Mandy Treeby

Help your baby readjust to their sleep schedule and routine post-vacation with these expert tips and insights.

Baby Sleep Articles4 min read

What Is Sudden Infant Death Syndrome (SIDS)?

By Mandy Treeby

SIDS (sudden infant death syndrome) refers to the unexpected death of an infant, usually while asleep. Learn all about SIDS and its risk factors.

Baby Sleep Articles5 min read

Why Wake Windows Are More Important Than the Clock

By Mandy Treeby

Learn why wake windows are crucial for your baby's sleep. Discover how to use wake windows to optimize your child's sleep schedule and promote more restful sleep.

When Can Your Baby Sleep With a Blanket
Baby Sleep Articles4 min read

When Can Your Baby Sleep With a Blanket?

It’s best to wait until at least 12 months to cover your baby with a blanket at night. Find out when it's safe for your baby to sleep with a blanket.

Baby Sleep Articles5 min read

Why Your Baby Shouldn’t Sleep on Her Stomach

By Mandy Treeby

You may be wondering when babies can start sleeping on their stomachs. Find out the recommended age here, and how to ensure your baby sleeps safely.