Lullaby Earth Breathability Whitepaper –

Breathability Whitepaper

What is a "breathable" crib mattress?

The idea behind a breathable crib mattress is that air can flow through the surface of the mattress and into an open area below the surface. There’s just one problem. Breathable mattresses are not waterproof. If air can get through, so can various liquids or vapors. Once soiled (which WILL happen!), the mattress can potentially grow mold, or otherwise become unsanitary or even dangerous.

The Lullaby Earth Breeze crib mattress is the first crib mattress to offer breathability while still being fully waterproof. It is a two-piece system that consists of a waterproof core and a highly breathable cover layer that is removable and washable. The cover layer is three dimensional so that the baby is actually floating on a cushion of air. The core is made with food grade material that is easy to clean and hygienic. It's breathability done right. You do not have to compromise on comfort, safety or hygiene and cleanup is quite simply a Breeze.


"Breathable" crib mattresses appear to be an emerging topic in the baby mattress industry. In general, most people interpret a "breathable" crib mattress to mean that the baby can breathe right through the surface fabric and into an open area below the outer fabric. This scenario, however, presents issues. If the baby can breathe through the surface fabric, that means air can flow through the surface fabric. In other words, air can flow from outside the fabric into the mattress and from inside the mattress back out to the breathable air.

This design is problematic because if air can flow into the interior of the mattress, then so can urine vapor. This can lead to unpleasant odors and encourage bacteria and even mold to grow inside the mattress. Because the mattress surface is breathable, that contaminated air can flow right back out through the fabric for the baby to breathe.

Since consumers can't throw a mattress into a washing machine or dryer, a "breathable" mattress where the baby can breathe through the surface fabric can be dangerous. A baby crib mattress should be waterproof, with the surface hygienic, meaning that it's easy to wipe down and clean. The better path to "breathability" is not with a "breathable" mattress, but an actual waterproof mattress with a breathable surface.


The first step towards proper breathability is to follow the recommendations of the Consumer Product Safety Commission (CPSC). The CPSC recommends that baby crib mattresses be firm and flat so there will be plenty of surrounding air for the baby to breathe. (The CPSC also recommends that no extraneous soft bedding or other objects like stuffed animals be in the crib as they present suffocation hazards for the baby.)

For "increased" air flow, the better way to achieve this is to add a breathable air-flow layer over and around the mattress. This is the approach taken by the new Lullaby Earth Breeze.


The new Lullaby Earth Breeze crib mattress offers a totally waterproof mattress with a breathable layer over the top. With this best-of-both-worlds solution, the breathable layer can be removed and machine washed, while the mattress offers a responsible wipe-clean hygienic surface that will not breathe in urine and other vapors.

Remember, the baby needs to breathe, not the mattress. Avoid "breathable" solutions that might promote contamination inside a mattress. With the Lullaby Earth Breeze, breathability works together with hygienic safety. The Lullaby Earth breathable layer is also available separately and is waterproof as well.

Learn more about the Lullaby Earth Breeze Crib Mattress.