Baby crib bumper: a real danger?

Updated on 26 August 2025
Baby Sleep
2 minutes

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The crib bumper, a trendy baby accessory, is appearing more and more in nurseries. But is its use really recommended?

Crib bumper: danger or not? Let’s take a closer look.

What is a crib bumper?

A crib bumper is a decorative accessory that is more or less thick, used to line the inside of your baby’s crib. It’s usually soft and cushioned. There are different types: flat, braided, etc. It can cover part of the crib or go all the way around. It’s typically installed inside the crib, tied to the bars.

 

Is the crib bumper really dangerous?

Often sold by major retailers, the crib bumper is actually quite controversial.

The advantages

The purpose of the crib bumper, as its name suggests, is to line the inside of the crib. Because it’s attached to the bars, it’s supposed to protect the baby from injury if they bump into the sides during the night. It’s also thought to prevent incidents like the baby’s head, legs, or arms getting stuck between the bars. However, the spacing of the bars is specifically designed to prevent those incidents.

Additionally, the bumper can sometimes make the crib feel smaller, which might help meet the baby’s need for containment. After spending nine months in the snug space of the womb, your baby may find the wide open space of the crib intimidating. The crib bumper can create a sense of reassurance when they touch the soft sides.

The risks

At first glance, installing a bumper in your baby’s crib may seem beneficial. But in reality, it presents risks for your newborn. Surrounding the crib to create that sense of containment can also be dangerous. The bumper can trap the air your baby breathes, which can increase the risk of suffocation (as babies naturally turn their face toward the bumper) and hyperthermia (an increase in body temperature).

A crib bumper is a hazard in your baby’s crib, just like other bulky items such as sleep positioners, stuffed animals, pillows, or blankets. Even if major stores or specialty shops sell “breathable” or “safe” bumpers, it is strongly advised not to use one in your baby’s crib. Their use does not guarantee any reduction in the risk of Sudden Infant Death Syndrome (SIDS).

Want to learn more? Feel free to download the May app, where you’ll find plenty of resources to support and guide you throughout your journey as a new parent.

crib bumper baby dangerHow to put your baby to bed safely

If crib bumpers are best avoided, there are other practices and items you can turn to for safe and comfortable sleep for your baby.

A well-prepared room

Whether you decide to share your room with your baby or not, there are some common precautions to take:

  • Keep the room temperature between 19°C and 20°C.
  • Make sure the crib is clear by removing all toys and stuffed animals.
  • Choose a crib that matches your baby’s size, and if it has bars, make sure the spacing meets the European safety standard (between 4.5 cm and 6.5 cm) so your baby can’t get their head stuck.
  • Use a mattress that is firm, flat, and meets safety standards, with no gaps around the edges, and cover it with a properly fitted sheet.

How to safely put your baby to bed

Here are some guidelines you can follow to ensure safe sleep for your baby:

  • Place your baby on their back on a flat surface,
  • Avoid covering them with a sheet or blanket,
  • Choose a sleep sack or wearable blanket in the right size,
  • Dress your baby in clothing appropriate for their size and the room temperature,
  • Remove necklaces, chains, or any items around the neck,
  • Make sure their head and face are clear and uncovered.

Good to know: To meet your baby’s need for containment, consider using a smaller crib (like a bedside crib), and place your baby near the side of the crib so they can feel the edges.

Now you have all the keys to ensuring your baby sleeps safely in their crib.

crib bumper baby danger**

Photo credits: imagesourcecurated | ArseniiPalivoda | ArtemVarnitsin

This text was translated from French by an artificial intelligence. The information, advice, and sources it contains comply with French standards and may therefore not apply to your situation. Make sure to complement this reading by visiting the May US/UK app and consulting the healthcare professionals who are supporting you.


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