Can Newborns Sleep on Their Stomach?
Why Stomach Sleeping Is Dangerous for Newborns
Even if your baby seems to settle more easily on their tummy, the risks are simply too high. Here’s why sleeping on the stomach is not safe:
🔄 Rebreathing
Your baby may exhale into the mattress, then re-inhale that air low in oxygen and high in carbon dioxide. Over time, this can reduce oxygen levels in their blood.
🌡️ Overheating
Tummy sleeping may raise your baby’s body temperature, particularly if their face is close to bedding. Overheating is a known risk factor for SIDS.
😴 Breathing Obstruction
A baby lying face down can press their face into the mattress. If they can’t move themselves, this may lead to suffocation.
🧠 Autonomic Nervous System Suppression
Stomach sleeping may interfere with the body’s ability to regulate key functions like breathing and heart rate, making it harder for babies to wake if something’s wrong.
Learn more about safe sleep foundations in my infant sleep guides, tailored for newborns through to toddlers.
Is Side Sleeping Safe for Babies?
No side sleeping is also unsafe for babies under 12 months. A baby placed on their side can easily roll onto their tummy, especially if they’re not yet developmentally able to roll back.
If you see your baby on their side during sleep, and they can’t yet roll both ways independently, gently return them to their back.
What If My Baby Rolls Onto Their Tummy in Their Sleep?
Once your baby has developed the ability to roll both front-to-back and back-to-front independently, it is considered safe to let them find their own sleep position even if that means sleeping on their tummy.
🍼 Until then, always place your baby on their back for all sleep. If they roll during sleep but can’t roll back, reposition them gently onto their back.
Babies typically begin learning to roll between 3–6 months, but every child develops on their own timeline.
Tips to Encourage Safe Back Sleeping
✔️ Start from Day One
Place your newborn on their back for every sleep—this helps build healthy habits and comfort in that position.
✔️ Use a Firm Mattress
Ensure your baby is sleeping on a firm, flat mattress with a fitted sheet. Avoid soft surfaces, pillows, and loose bedding.
✔️ Swaddle Safely (Until Rolling Begins)
Swaddling can help prevent startles and increase comfort. But once your baby shows signs of rolling, stop swaddling immediately and transition to a sleep sack.
✔️ Create a Comfortable Environment
Keep your baby’s sleep space dark, quiet, and comfortably cool (around 20–22°C or 68–72°F). Use white noise to block out disruptive sounds if needed.
✔️ Stick to a Consistent Bedtime Routine
Establishing a simple bedtime routine can help cue your baby’s body and brain that it’s time for sleep. This might include a bath, fresh nappy, story, song, or cuddle.
Why Back Sleeping Matters Most in the Early Months
Around 90% of SIDS cases occur before six months of age, with most occurring between 1–4 months. Your baby is most vulnerable during this time particularly if they don’t yet have the motor control to reposition themselves in their sleep.
The safest sleep position until their first birthday? Always place your baby on their back.
Looking for expert help with newborn sleep or adjusting to rolling milestones? Check out my sleep support packages for tailored guidance.
Final Thoughts
While it may be tempting to let your baby nap or sleep on their tummy especially if they seem to prefer it sticking to back sleeping for the first year is the safest choice you can make.
It’s about giving your baby the safest start possible, and helping them learn to sleep confidently, independently, and securely.
If you’re unsure where to start, I invite you to explore my sleep support packages. I also offer comprehensive sleep guides covering newborns through to toddlers so you have everything you need for a restful night.
Not sure which option is right for you? Book a free 15-minute call with me, and we’ll find the best fit for your family’s sleep needs.
I’m here to help please don’t hesitate to reach out!