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It’s safest for your baby to share a room with you, sleeping in a cot next to your bed, for the first year of life or at least the first 6 months.

Co-sleeping: things to think about

Co-sleeping is when parents sleep on the same surface as their babies – for example, when they bring their babies into bed with them to sleep.

Co-sleeping is associated with an increased risk of sudden unexpected death in infancy (SUDI) including sudden infant death syndrome (SIDS) and fatal sleeping accidents in some circumstances. But parents choose to have their babies in bed with them for several reasons.

For example, some parents who co-sleep with their babies believe that it helps their babies feel safe and secure. These parents like the close body contact, feel that it’s rewarding and satisfying, and believe it’s good for their relationships with their babies.

Also, some parents co-sleep because they find it more practical. Breastfeeding and resettling during the night can be easier. Some parents feel that it helps with establishing breastfeeding.

When a baby dies unexpectedly and for no obvious reason, it’s called sudden unexpected death in infancy (SUDI). This is a broad term that includes SIDS and fatal sleeping accidents. Although SIDS is better known, SUDI, SIDS and fatal sleeping accidents all share common risk factors.

Factors that increase co-sleeping risks

Co-sleeping always increases the risk of SUDI including SIDS and fatal sleeping accidents.

Co-sleeping increases SUDI risk even more in the following situations:

  • You’re very tired or you’re unwell.
  • You or your partner uses drugs, alcohol or any type of sedative medication that causes heavy sleep or make you feel less aware. This includes prescription medication.
  • You or your partner smoke.
  • Your baby is unwell.
  • Your baby is less than 3 months old or was premature or smaller than most babies at birth.

Sleeping with a baby on a couch or chair is always unsafe. Move your baby to a safe sleep environment if you think you might fall asleep in a chair or couch while holding your baby.

Reducing the risk of SUDI including SIDS and fatal sleeping accidents

There are some things you can do to reduce the risk of SUDI including SIDS and fatal sleeping accidents if you choose to co-sleep with your baby:

  • Put your baby on their back to sleep (never on their tummy or side).
  • If you have long hair, tie it back. Also remove anything else that could be a strangling risk, including all jewellery and teething necklaces.
  • Put your baby to your side. Never put your baby between 2 adults or next to other children or pets. Your baby might get rolled on or overheat.
  • Move the bed away from the wall, so baby can’t get trapped between the bed and wall.
  • Make sure your baby’s face and head remain uncovered. Keep pillows and adult bedding like sheets, blankets and doonas away from your baby’s sleep space. Consider using a safe infant sleeping bag so your baby doesn’t share adult bedding.
  • Make sure the mattress is firm and flat. Don’t use a waterbed or anything soft underneath – for example, a lamb’s wool underlay, folded blankets or pillows.
  • Never wrap or swaddle your baby if you’re co-sleeping.
  • Make sure your baby can’t fall out of bed. The safest spot is on the side of a big bed, away from the edge. Consider sleeping on your mattress on the floor if it’s possible your baby might roll off the bed.

You can also check out our illustrated guide to reducing the risk of SUDI including SIDS and fatal sleeping accidents.

If you’re co-sleeping because your baby is unsettled

Parents sometimes bring a baby into bed because the baby is waking or unsettled at night. If the parents’ bed is set up for the baby, this can work well for some families.

But sometimes problems come up if parents want their child to sleep in a separate bed before the child wants to move. Many parents who sleep with their children report that children usually want their own beds by the age of 2-3 years. It can take longer than this, though, and sometimes parents want to stop co-sleeping before their child does.

If you decide co-sleeping isn’t the best settling option for you and your child, there are other options for settling your baby to sleep.

The practice of bed-sharing — parents sharing a bed with their infant — is a hot topic. Supporters of bed-sharing believe that a parent's bed is just where a baby belongs. But others worry that bed-sharing is unsafe.

Co-Sleeping, Room-Sharing, and Bed-Sharing

Many people use the terms "bed-sharing" and "co-sleeping" to describe the same thing, but there are differences:

  • Co-sleeping: This is when a parent and child sleep in close social or physical contact of each other, meaning that each can tell that the other is nearby.

Room-sharing and bed-sharing are types of co-sleeping:

  • Room-sharing: This is when parents have a crib, bassinet, portable crib, or play yard in the room with them near the bed. Or, they attach a bedside sleeper to the side of their bed.
  • Bed-sharing: This is when parents and infants sleep together in a bed, couch, or chair. This has raised concerns because bed-sharing with an infant increases the risk sleep-related deaths, including sudden infant death syndrome (SIDS).

Why Do Some Parents Bed-Share?

Bed-sharing supporters believe — and some studies support their beliefs — that bed-sharing:

  • encourages breastfeeding by making nighttime breastfeeding more convenient
  • increases how many months a mother breastfeeds her baby
  • helps babies fall asleep more easily
  • helps babies and mothers get more nighttime sleep
  • gives moms more time to be close to their infants

But the risks of bed-sharing can outweigh the benefits.

In some cultures, bed-sharing is common and the number of infant deaths related to it is low. Differences in mattresses, bedding, and other cultural practices may account for the lower risk in these countries.

But health experts warn parents not to place their infants to sleep in adult beds due to serious safety risks. Bed-sharing increases the chance of suffocation, strangulation, and SIDS.

An adult bed has many safety risks for a baby, including:

  • suffocation from a soft mattress, memory foam, waterbed, or loose or soft bedding such as pillows, blankets, or quilts
  • entrapment and suffocation when an infant gets trapped or wedged between a mattress and headboard, wall, or other object
  • strangulation in a bed frame that allows part of an infant's body to pass through an area while trapping the baby's head, or from dangling cords

Babies should always be placed to sleep on their backs on a firm mattress or other firm sleep surface (such as in a portable crib) without any pillows, blankets, toys, stuffed animals, or other items.

Because of the risks involved, the American Academy of Pediatrics (AAP) and the U.S. Consumer Product Safety Commission (CPSC) warn against bed-sharing. The AAP does recommend the practice of room-sharing without bed-sharing. Sleeping in the parents' room but on a separate surface lowers a baby's risk of SIDS.

Bed-Sharing & SIDS

Bed-sharing increases a baby's risk of dying from SIDS, especially in preterm infants (preemies), babies who had a low birth weight, and healthy full-term infants younger than 4 months old.

Other things that increase this risk of death while bed-sharing include:

  • a baby sleeping on a couch alone or with a parent
  • a baby sleeping between two parents
  • a mother who smokes
  • parents who are very tired
  • a parent who has recently used alcohol or drugs
  • bed-sharing with pillows or bedcovers
  • bed-sharing with other children

How Can We Room-Share Safely?

To keep your little one close, but not in your bed, put a bassinet, play yard, or crib next to your bed. This lets you keep that desired closeness, which can be especially important if you're breastfeeding. Having an infant sleep in a separate space in the same room as the mother reduces the risk of SIDS. You also might consider a bedside sleeper, which attaches to your bed, letting you and your baby be next to each other but on separate surfaces.

Make sure that all sleep surfaces and products you use to help your baby sleep have been approved by the CPSC and meet federal safety standards.

Experts recommend that infants sleep in their parents' room without bed-sharing until their first birthday. If parents prefer to move the baby to another bedroom, it's best to wait until the child is at least 6 months old.

How to Bed-Share as Safely as Possible

Some parents decide bed-sharing is best for their family despite the risks. If you choose to have your baby in bed with you, follow these precautions:

  • Always place your baby on their back to sleep to reduce the risk of SIDS.
  • Dress your baby in minimal clothing to avoid overheating.
  • Offer a pacifier to your baby at sleep time, but don’t force it. If the pacifier falls out during sleep, you don’t have to replace it.
  • If you swaddle your baby and the baby starts trying to roll over, stop swaddling.
  • Don't place your baby to sleep alone in an adult bed.
  • Don't place your baby on a soft surface to sleep, such as a soft mattress, sofa, or waterbed. Make sure your bed's mattress is firm.
  • Make sure your bed's headboard and footboard don't have openings or cutouts that could trap your baby's head.
  • Make sure your mattress fits snugly in the bed frame so that your baby won't become trapped between the frame and the mattress.
  • Don't cover your baby's head while they're sleeping.
  • Don't have pillows, comforters, quilts, and other soft or plush items on the bed. You can dress your baby in a sleeper instead of using blankets.
  • Don't place your bed near draperies or blinds where your child could be get caught in and strangled by cords.
  • Don't fall asleep with your baby on your chest.
  • Don't sleep on couches, recliners, or rockers with your baby.
  • Don’t use weighted blankets, sleepers, or swaddles on or around your baby.


  • Don’t let your baby fall asleep on a product that isn’t specifically designed for sleeping babies, such as a sitting device (like a car seat), a feeding pillow (like the Boppy pillow), or an infant lounger (like the Dock-a-Tot, Podster, and Bummzie). 
  • Don’t use products or devices that claim to lower the risk of SIDS, such as sleep positioners (like wedges or incliners) or monitors that can detect a baby’s heart rate and breathing pattern. No known products can actually do this.
  • Don't smoke, drink alcohol, or use medicines or drugs that can make you less alert or keep you from waking up.

Avoid bed-sharing with infants who are at greatest risk of SIDs. This includes those younger than 4 months, preterm babies, and those who had a low birth weight.