When Can Babies Safely Start Sleeping on Their Stomach?

Have you ever checked on your baby during the night, only to find them snoozing peacefully on their tummy? It’s a moment that can bring both smiles and questions. Is it safe? Should you roll them back over? For many parents, the transition to tummy sleeping feels like a significant milestone—but it also comes with a mix of excitement and concern.

Tummy sleeping may look natural, but it has specific safety guidelines, especially during the first year. Babies are constantly growing and developing. Knowing when they can safely sleep on their stomachs gives you the confidence to navigate this important stage of development.

Let’s take the guesswork out of tummy sleeping so you can rest easy—just like your little one.

What to expect

When it comes to tummy sleeping, understanding the right timing and safety guidelines is key. In this blog, we’ll cover everything you need to know about ensuring your baby sleeps safely and comfortably.

Here’s what you’ll find:

What are safe sleep practices for babies?

Creating a safe sleep environment is the foundation of healthy rest - for both you and your little one.  Did you know that placing babies on their backs reduces the risk of SIDS by up to 45 times? Here’s how to ensure your baby sleeps safely:

1. Always place babies on their back to sleep

The American Academy of Pediatrics (AAP) recommends placing babies on their backs to sleep for at least the first 12 months. This position significantly reduces the risk of Sudden Infant Death Syndrome (SIDS), especially in the critical first 6 months.

2. Ensure a safe sleeping environment

A safe crib setup is just as important as positioning. Here’s how to create it:

  • Firm mattress: Use a safety-approved, firm mattress with a snugly fitted sheet.
  • No soft bedding: Keep the crib free of blankets, pillows, stuffed toys, and crib bumpers.
  • Room sharing without bed sharing: Babies often sleep more peacefully when they’re close to their mother or primary caregiver, as it can help them regulate their breathing. To balance closeness and safety, consider placing your baby in a bedside sleeper right next to your bed. This allows you to easily tend to them during the night while maintaining a safe sleeping environment. However, sharing the same bed with your baby is not recommended for safety and health reasons.

Parent-to-Parent Tip: “Keep it simple” is the golden rule for crib safety. A firm mattress, a snug sheet, and your little one are all you need for restful, safe sleep.

Creating a safe sleep environment is just one piece of the puzzle. Understanding why stomach sleeping can be risky in the early months helps you make informed choices for your little one.

What are the risks of stomach sleeping for babies?

While tummy sleeping might look harmless, it poses real risks, particularly in the early months when your baby’s mobility and strength are still developing.

1. Increased risk of SIDS

Tummy sleeping is one of several other risk factors that increases the risk of Sudden Infant Death Syndrome (SIDS), especially in the first 6 months when babies have limited neck and head control. Research by the American Academy of Pediatrics (AAP) shows that placing babies on their stomachs can interfere with their ability to breathe properly and regulate their body temperature.

2. Other safety concerns

  • Overheating: Babies lose heat more effectively when sleeping on their backs. Tummy sleeping may trap heat, increasing the risk of overheating—a known factor in SIDS.
  • Suffocation: A baby’s face might press into the mattress, increasing the likelihood of rebreathing carbon dioxide.
  • Rebreathing risks: When a baby breathes in the same exhaled air repeatedly, it can lead to reduced oxygen levels.

Knowing the risks of tummy sleeping emphasizes why timing and developmental milestones matter. So, when is it safe for your little one to sleep on their stomach? Let’s find out.

Want to remember your baby’s developmental milestones like rolling? Happy Baby provides tools to guide you through each stage, ensuring safe and restful sleep for your little one.

Check out the Happy Baby app today! 

When can babies sleep on their stomach?

The big milestone that makes stomach sleeping safer is rolling over.

1. Rolling both ways is key

Babies can safely sleep on their stomachs once they can roll both ways—back to tummy and tummy to back—on their own. This typically happens around 6 months, but every baby develops at their own pace.

2. Let them stay once they roll

Once your baby consistently rolls over on their own during sleep, it’s okay to let them stay in that position. There’s no need to flip them back onto their back, as their ability to roll indicates they can reposition themselves safely.

Important Note: Even when babies start tummy sleeping on their own, always place them on their backs initially when putting them to sleep.

Reaching the rolling milestone is exciting, but it often raises new questions about safety. Let’s explore how to confidently and securely manage tummy sleeping for your little one.

Looking for tailored schedules to meet your baby’s sleep needs before they reach this stage? Explore sample routines for 1-month-olds and 2-month-olds to get started.

How can you safely manage tummy sleepers?

When your baby starts rolling over and sleeping on their tummy, it’s a significant milestone that brings both excitement and questions. With the right precautions and support, you can manage this transition with confidence.

1. Let them stay once they roll both ways

If your baby rolls onto their stomach during sleep and can roll back independently, it’s safe to let them stay in that position. Their ability to move freely is a reassuring sign they’re ready for tummy sleeping.

2. Use a firm, safety-approved mattress

Stick to a firm mattress with a snug, fitted sheet. Avoid soft bedding or cushions that could obstruct airflow or pose a suffocation risk.

3. Transition from swaddling to sleep sacks:

Once your baby starts rolling, swaddling becomes unsafe as it restricts movement. Transition to a sleep sack, which provides comfort without limiting their ability to reposition themselves.

4. Keep the crib clutter-free

Ensure the crib is free of pillows, blankets, toys, bumpers, or any other items that could create hazards for a tummy sleeper. A minimalist crib is the safest sleep environment for your baby.

5. Encourage supervised tummy time during the day

Tummy time when your baby is awake and supervised strengthens their neck, shoulder, and core muscles. This helps them develop the skills needed for safe tummy sleeping and boosts their overall development.

6. Consult your pediatrician for reassurance

If you’re feeling unsure or nervous, don’t hesitate to reach out to your pediatrician. They can provide personalized guidance based on your baby’s developmental progress and help ease any concerns you might have.

Parent-to-Parent Tip: You’re not alone—every parent has questions about tummy sleeping. Tummy sleeping is a sign of growing independence and strength. Trust your baby’s progress, and know that with time, they’ll master their movements and sleep even better.

If your little one struggles with regressions while adjusting to tummy sleeping, take a look at these strategies for managing sleep disruptions during the 4-month or 8-month regression.

Looking for personalized sleep solution or expert guidance on managing tummy sleepers? Happy Baby offers tailored sleep tips, developmental milestones, and calming features to support you through every stage. Download it today for peace of mind!

Sleep assistance

Sleep aids

Short & Sweet

When it comes to tummy sleeping, timing and safety are everything. Until your baby can roll both ways independently, always place them on their back for sleep and maintain a safe crib environment.

Once they’re rolling confidently, you can let them choose their sleep position while continuing to prioritize safety—like a firm mattress and no loose bedding. And remember, every baby develops at their own pace. If you’re ever unsure, your pediatrician is just a call away.

Parenthood is full of questions, and this is just one of them. Trust your instincts, celebrate your baby’s milestones, and know that you’re doing an amazing job keeping them safe and happy.

Need help navigating your baby’s sleep milestones? The Happy Baby app offers personalized schedules, milestone tracking, and expert advice tailored to your baby’s needs.

Try now

FAQ - Everything else you should know

1. Is it safe for a baby to sleep on their stomach if they roll over at night?

2. Should I still place my baby on their back even if they prefer tummy sleeping?

3. What age do most babies start rolling over?

4. Can swaddling be used for tummy sleepers?

5. How can I tell if my baby’s sleep environment is safe?

Sources:

  1. https://safetosleep.nichd.nih.gov/reduce-risk/reduce#:~:text=By%20placing%20babies%20on%20their,reduce%20baby's%20risk%20of%20SIDS
  2. https://safetosleep.nichd.nih.gov/about/risk-factors#:~:text=Babies%20who%20get%20overheated%20are,on%20their%20stomachs%20to%20sleep.
  3. Priyadarshi, M., Balachander, B., & Sankar, M. J. (2022). Effect of sleep position in term healthy newborns on sudden infant death syndrome and other infant outcomes: A systematic review. Journal of global health, 12.
  4. Hewitt, L., Stanley, R. M., & Okely, A. D. (2017). Correlates of tummy time in infants aged 0–12 months old: A systematic review. Infant Behavior and Development, 49, 310-321.