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How do I know if this crib mattress will fit my baby’s crib?

Cribs sold in the USA have standardized size requirements as regulated by the government. Crib mattresses are designed to fit snugly inside a USA standard-sized crib. All of our mattresses are compliant with US regulations.

How do I measure my crib?

Crib dimensions are dictated by ASTM and Federal Law. Regulations require cribs to have interior dimensions of 28 +/- 5/8 inches wide and 52 3/8 +/- 5/8 inches long.

What does my mattress warranty cover?

Please visit our Warranty page for complete information.

Does this mattress fit a toddler bed?

All Kolcraft, Sealy and Stearns & Foster crib mattresses are designed to fit in USA standard cribs and toddler beds.

Is this mattress waterproof?

All Kolcraft, Sealy and Stearns & Foster crib mattresses are made with waterproof covers. Laminate covers are inherently waterproof and fabric covers come with additional non-toxic waterproofing to help ensure they are easy-clean and do not trap liquids, which can cause mold or germs.

How do I clean my mattress?

ll Kolcraft, Sealy and Stearns & Foster crib mattresses are made with easy-clean covers. Simply wipe down laminate covers with a damp cloth or a gentle cleanser. Spot clean any cloth covers with water and a gentle detergent.

What is GREENGUARD® GOLD Certification?

GREENGUARD® GOLD Certification is earned when the mattress passes strict tests for indoor air quality and chemical emissions for products used with children. An independent laboratory puts the mattress in an air chamber and measures the component emissions. The Gold standard means it’s been tested for safe use with children.

I have an older model that does not say it is GREENGUARD® GOLD. How can I find out if it is certified?

The materials used in our crib mattresses have been certified. All GREENGUARD testing was completed in 2011.

I cannot find my model number.

The crib mattress model number is located on the law tag sewn into the cover. Also, view this visual for further assistance

What is Crypton technology?

Crypton is a GREENGUARD Certified, environmentally friendly finish used on fabrics containing natural fibers like organic cotton and rayon from bamboo. It creates an incredibly soft feel WITHOUT the use of any plastics. Only Sealy mattresses use the Crypton Super Fabric Technology, other crib manufacturers may use polyethylene plastic to wrap their organic cotton. 

Innovative Crypton Fabric on your natural Sealy crib mattress:



How to Clean Your Sealy crib mattress that offers Crypton Technology:


Can the Kolcraft portable or mini crib mattress be used in a soft-sided playard or playpen?

To protect your child and prevent suffocation, this Mattress should NOT be used with any soft-sided playards or playpens such as “pack n’ plays” and similar mesh-sided play yards. This mattress measures 38” x 24” x 2.5” and is designed for use with wood-sided or other hard-sided portable cribs with inside dimensions NOT larger than 24.5” W x 38.5” L. We recommend that you discontinue use of the Kolcraft Cozy Soft Portable Mattress with a playard immediately if it has soft sides. If you have any questions or concerns, please reach out to Kolcraft’s customer service team for further assistance.