Ask Naturepedic: Do Your Mattresses Fit Every Crib?

We get a handful of questions related to the size and fit of our crib mattresses in various cribs, so let’s put those questions to bed!

Crib Mattress Size

There are safety standards that dictate a minimum and maximum size for cribs and crib mattresses, and Naturepedic crib mattresses are designed with these standards - and your child’s safety - in mind. Our mattresses measure approximately 27 ¼ x 51 ⅝ x 6 inches, which is the size for standard cribs.

Some cribs are slightly bigger or slightly smaller than our mattresses, while still being within industry guidelines. This means that your Naturepedic crib mattress may not fit perfectly in your crib, so it’s always best to test the size of our mattress with your chosen crib.

Avoiding Mattress Gaps

It is very important that you avoid gaps between the side of the crib and your mattress. A gap larger than two fingers wide becomes an entrapment risk for your baby, and their limbs could get stuck between the crib and mattress.

A soft or squishy mattress can cause gaps to appear if your toddler starts to stand at the edge of their crib, which you may not anticipate if the mattress otherwise fits in the crib. Naturepedic crib mattresses are made with reinforced edges - including our lightweight models made with food-grade polyethylene. Edge support and square corners help with a snug fit all around your baby’s crib.

Be sure to not use items like blankets or other soft material to fill a gap between your mattress and crib. This is not safe and becomes a suffocation hazard. Ensure that your crib mattress fits securely in your crib without a large gap.

Ask Us Anything

If you still have questions about the fit or sizing of our crib mattresses, or any other topic, leave it in the comments below, email us at cs@naturepedic.com or call us at 1.800.917.3342.