Reviewed by Dr. Jennifer Trachtenberg — May 2025
We all know that babies need to get a lot of sleep. Parents often have many questions about how they can make sure that their baby is sleeping safely.
At 12 months you can add a blanket to your baby’s crib.
You should always put your baby to sleep on their back, but sometimes babies will naturally roll over onto their stomachs. Babies can sleep on their stomachs only after they can roll over both ways, which usually happens around six months.
If your baby cannot roll over both ways and they migrate to their belly at night, gently adjust them back onto their back.
No. It’s safest for babies to sleep on a flat, firm surface, such as a crib or a blanket on the floor during naps. If your baby falls asleep in their swing, gently move them to their crib.
It is perfectly fine for your baby to sleep in a car seat for short periods of time. Many parents use a short car ride to help babies fall asleep. However, it is safest for your baby to sleep in their crib with a flat, fitted sheet. If your baby is asleep in their car seat when you arrive home, it is recommended (and safest) to transfer them to their crib.
No, babies should sleep flat on their backs until they can roll over both ways.
Yes, wearable sleep sacks are a safe and cozy alternative to blanket swaddling for your newborn. But as your baby grows and starts showing signs of rolling over, which can happen as early as 2 months, it’s time to make a switch.
At that stage, you’ll want to stop using any sleep sacks that compress the arms, chest, or body. Instead, look for a sleep sack that lets your baby move freely. This gives them the freedom to roll safely when they’re ready.
An important note: avoid using weighted sleep sacks. These can make it harder for your baby to move or roll, which can be unsafe for them.
It’s safe for your baby to sleep with a pacifier from day one, if bottle feeding. Evidence suggests that the use of a pacifier at this age can reduce the risk of sudden infant death syndrome (SIDS).
Tip: if your baby uses a pacifier, you can prevent sleep disruptions by placing an extra pacifier in their crib at night. This will make it easier for them to find one if they wake up and reach out for one.
No. Co-sleeping, also known as bed-sharing, is not safe for your baby. If you co–sleep, your baby can get tangled in the sheets, suffocate on a pillow, or you may roll over them, injuring your baby. Instead of co-sleeping, consider room-sharing.
Room sharing with your baby is when you keep your baby’s crib in your room.
There are many benefits:
It’s the death of a baby where the cause isn’t clear. It includes SIDS, accidental suffocation and strangulation in bed, and other deaths from unknown causes.
Sudden infant death syndrome is the sudden and unexplained death that happens before the age of one with no known underlying reason. Though scary, SIDS is rare, about 1 in 1,000, and there are ways to reduce the risk.
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Disclaimer: The information provided by Progyny is for educational purposes only and is not medical advice. Always consult a qualified healthcare provider for medical guidance.