3D SafeSleep™ Technology
Nanosphere technology allows liquid to bead on the surface of the fabric, while eucalyptus lyocell contributes to a moisture-wicking environment that regulates your baby's body temperature, giving them a comfortable night's sleep.
Free of Plastic
There's a reason we tell our kids not to put plastic over their heads - it's not breathable. Our crib mattresses are free of impermeable, waterproof plastic and polymers that can grow mold.
We proudly use natural, biodegradable materials like cotton and eucalyptus lyocell in our covers.
Materials, Weight & Dimensions
SafeSleep™ Crib Mattress Cover Materials
Organic Cotton, Organic Eucalyptus Lyocell, Organic Cotton/Non-Toxic Poly Blend, Easy-Close Nylon Zipper, Breathe-Thru Technology™
Organic Coconut Coir, Organic Wool
Nook products are carefully made in small batches using materials that are not always identical in color or consistency. For example, variations from hand-sewing, natural pilling on the fabric, or natural fibers embedded in mattress fire barriers are not considered warranty defects that affect the safety or function of the product.
23” x 37” x 3”
Care Instructions & Use
Turn SafeSleep™ mattress cover inside out and zip up. Machine wash cover alone in cold water with mild detergent. Line dry or tumble dry on low heat. Do not use fabric softener, chlorine bleach or dryer sheets. Crib sheet optional.
The organic SafeSleep™ crib mattress covers are uniquely designed to be used with Nook's Mini Pure mattress, which is 3 inches thick. Using our crib mattress covers on thicker crib mattresses is not recommended.
How long will your order take? Check out our Shipping Information page! All orders are processed Monday-Friday. Orders placed during sales, weekends, or holidays may experience longer processing times.
We stand by our products. Visit the Nook Warranty page for details on what's covered or to open a warranty claim.