Crib bumpers are unsafe because they create suffocation, strangulation, and entrapment risks for sleeping infants. Between 1985 and 2012, 48 infant deaths were directly attributed to crib bumpers, and another 146 babies nearly suffocated, choked, or were strangled in bumper-related incidents. The risk was serious enough that the U.S. federal government banned their sale entirely in 2022.
How Bumpers Cause Suffocation
The primary danger is straightforward: a baby rolls or turns so that their mouth and nose press against the bumper’s padded fabric. When that happens, exhaled carbon dioxide gets trapped in the material instead of dispersing into the air. With each breath, the infant pulls that stale, oxygen-depleted air back in. This cycle, called carbon dioxide rebreathing, can quickly become fatal.
The suffocation risk depends on two factors. First, how tightly the baby’s face seals against the fabric. When the skin around the nose makes nearly continuous contact with the material, exhaled air gets directed into the padding rather than escaping into the room. Second, how permeable the material is. Dense, padded fabrics hold onto trapped gas longer, meaning the carbon dioxide hasn’t dissipated by the time the baby takes the next breath. Research using infant manikins found that when more pressure was applied against a padded bumper (simulating a baby pressing harder into the material), carbon dioxide rebreathing increased by 50% to 80%.
Infants are especially vulnerable because they lack the strength and motor coordination to reposition themselves when breathing becomes difficult. A baby whose face is pressed into a bumper may not be able to turn their head or push away, particularly in the first several months of life.
Entrapment and Strangulation
Suffocation isn’t the only hazard. Gaps between the bumper and the mattress create spaces where a baby’s body or face can become wedged. If an infant slides into that gap, the combination of the soft bumper material above and the mattress below can obstruct breathing through a mechanism called positional asphyxia, where the baby’s head gets tilted into a position that blocks the airway.
The ties or strings used to fasten bumpers to crib slats pose a strangulation risk. If a tie comes loose or a baby pulls at it, the cord can wrap around the neck. Even ties that seem short enough to be safe can become dangerous as babies grow more active and develop the ability to grasp and pull objects.
A Climbing Hazard for Older Babies
For babies who have outgrown the suffocation risk by developing better head control, bumpers introduce a different problem. Padded bumpers give older infants and toddlers a platform to step on, boosting them high enough to climb over the crib rail. As one mother reported in a study published in the Maternal and Child Health Journal: “I witnessed her step on top of the bumpers many times to elevate herself.” Falls from cribs can cause head injuries and fractures, and older, more mobile babies are significantly more likely to attempt climb-outs.
The Death Toll Rose Over Time
A Washington University review of CPSC data revealed a troubling trend. In the seven-year period from 2006 through 2012, 23 crib bumper deaths were reported, three times higher than the average of eight deaths in each of the three previous seven-year periods. This increase came despite growing awareness of safe sleep practices, suggesting that as long as bumpers remained available, parents continued using them and babies continued dying.
Overall, the CPSC connected 113 infant deaths to padded crib bumpers between 1990 and 2019.
The Federal Ban
On November 12, 2022, the Safe Sleep for Babies Act took effect, making crib bumpers a banned hazardous product under federal law. The ban is broad. It covers padded bumpers, vinyl bumper guards (both supported and unsupported), and vertical crib slat covers. It applies regardless of when the product was manufactured, so selling old stock is also illegal.
Non-padded mesh crib liners are explicitly excluded from the ban. However, the exemption doesn’t mean mesh liners are endorsed as safe. They still must meet general safety requirements for children’s products, and the American Academy of Pediatrics recommends keeping all soft items, including bumpers, out of the sleep space entirely.
Even after the ban, some products slip through. The CPSC has issued warnings about crib bumper sets sold online that violate the federal prohibition, reminding consumers to stop using them immediately.
Why Bumpers Existed in the First Place
Crib bumpers were originally designed to prevent babies from getting their limbs or heads stuck between crib slats. Decades ago, cribs were manufactured with wider slat spacing, making entrapment a real concern. Modern crib safety standards have long since addressed that problem by requiring slats to be spaced no more than 2 3/8 inches apart, narrow enough that a baby’s head cannot fit through. The original reason for bumpers no longer applies to any crib sold in the United States today.
What a Safe Crib Looks Like
The safest crib setup is also the simplest. Your baby needs a firm, flat mattress that fits snugly in a safety-approved crib, covered by a single fitted sheet. Nothing else belongs in there: no blankets, no pillows, no stuffed animals, no bumpers of any kind. Place your baby on their back for every sleep, including naps. If you’re worried about warmth, a one-piece sleeper or wearable blanket keeps your baby comfortable without introducing loose fabric into the crib.
Parents sometimes worry about babies bumping their heads on crib slats. Minor bumps are common and not dangerous. The risk they pose is incomparably small next to the suffocation risk that bumpers create.