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Sealy® Butterfly™ 2-Stage Breathable Knit Crib and Toddler Mattress

Voted America's healthiest crib mattress

  • #1 best selling in the USA and proudly made in the USA!


An American-made 2-stage grow-with-me crib and toddler mattress-in-a-box designed with a high-density foam side and a comforting soybean memory foam side, all wrapped inside a reinforced waterproof airy knit fabric zippered cover that is breathable on baby’s skin.

Product Details

America's most trusted mattress brand Sealy offers some of the best baby crib mattresses made with firm, comfortable and safety-tested materials.

An American-made 2-stage grow-with-me crib and toddler mattress-in-a-box designed with a high-density foam side and a comforting soybean memory foam side, all wrapped inside a reinforced waterproof airy knit fabric zippered cover that is breathable on baby’s skin.

The 2-stages of foam offer a high-density posture supportive firm side for infants and a softer soy-enhanced comfort foam for toddlers. Sealy's family-friendly foams are all CertiPUR-US Certified for air quality and durability.

It is designed to safely roll out flat and the high density foam is made with square corners to fit into the crib corners as well. The naturally colored waterproof cover protects baby and the mattress from stains, odors, mold and mildew from growing inside for a more sanitary environment. 

The foam is supportive and tested for lasting durability. Safety is a priority so Sealy crib mattresses are only made with GREENGUARD® GOLD Certified materials to help create a healthier indoor environment. The Gold standard is a higher standard for baby products like crib mattresses that infants and newborns spend a lot of time on. The mattress is gentle on baby's skin as it meets various state Chemicals of High Concern to Children regulations to children so questionable chemicals are not used.


  • 2-STAGE INFANT & TODDLER GROW-WITH-ME DESIGN: A firmer infant high density foam side (identified on the foam) and a more comfortable soybean memory foam side for optimal coziness for toddlers.  Exclusive soy-enhanced foams use natural and renewable soybeans that are provided by American farmers.
  • HYPOALLERGENIC FOAMS:  do not carry any proteins that would create an allergic reaction! Made without ozone depleters, no formaldehyde or volatile organic chemicals. A sewn in tag points to the infant side and both sides are tested for safe use with babies.
  • WASHABLE & BREATHABLE KNIT FABRIC COVER: A soft knit cover is breathable on baby’s skin and helps dissipate heat. The zip-off cover can be machine-washed for the ultimate cleanliness.
  • GREENGUARD GOLD & CERTIPUR-US CERTIFIED: GREENGUARD’s Gold standard helps to ensure a healthier sleeping environment, the product is air quality tested to ensure harsh chemicals or toxins are not released into baby’s room from the mattress. Always look for the Gold standard for baby mattresses since it’s a much stricter test and all the materials are tested. CertiPUR-US Certified foams are highly durable and made without harmful chemicals.
  • SNUG FIT IN CRIBS AND TODDLER BEDS: Safely unroll and allow the mattress to expand to 52 x 28 inches to create a perfect fit inside any standard full-size crib and toddler bed. Passes ASTM Crib Mattress Standards!
  • PREMIUM FOAM ROLLS OUT FLAT: Delivered to your doorstep in a lightweight, easy-to-carry box for ultimate convenience. Simply open and unroll your baby’s mattress and allow up to 48 hours for proper expansion before using.
  • Cover material - Breathable Knit Polyester Cover, waterproof, zips off easy for machine wash; Please note : cover design may vary
  • Made by Kolcraft Enterprises, Inc.
  • OEKO-TEX Certified 16.HUS.85390
  • Meets ASTM Standards, CertiPUR-US Certified Foam, CPSIA Certified, GreenGuard Gold Certified, Meets CPSC Standards
  • Finished Size 28 x 52 X 4.5"inches
  • 5 lbs., 9 oz
  • Made in USA of US and Imported Parts
  • Bedframe, Pillows, furnishings and accessories/decorations not included.
  • Manufacturer Part Number EM904-BBX1

    Size & Dimensions

          Returns & Warranty

          • Sealyhome Returns
          • Sealy® Crib Mattress Warranty

 return policy:

          Crib Mattress return policy:

          We believe you're little one will fall in love with their new mattress. If (during the first 90 nights) you don’t love your new mattress, call us at 1-800-806-5890. 

          We will work with you to address your concerns. If we can’t find a way to make you happy, we will take the mattress back, and refund your money, less shipping charges. 

          Questions about mattress returns - call us at 1-800-506-5890

          Sealy® Crib Mattress Warranty:

          Mattress Coverage:

          What is the warranty for my crib?

          Kolcraft Enterprises, Inc. (the licensee of Sealy Crib Mattresses) warrants cribs to be free of defects in materials and workmanship from the date of purchase from an authorized retailer or distributor. A crib will have a ONE YEAR warranty from the date of purchase.

          What will Kolcraft Enterprises, Inc. do?
          Kolcraft will repair or replace, at its option, the defective product. If you have a problem with or are not satisfied with your product, please contact the Customer Service Department at Kolcraft. Repair or replacement as provided under this warranty is the exclusive remedy of the consumer. Kolcraft shall not be liable for any incidental or consequential damages for breach of any express or implied warranty on this product, except to the extent this exclusion is prohibited by applicable law. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
          Any implied warranty of merchantability or fitness for a particular purpose on this product is limited in duration to the duration of this warranty.

          What does the crib warranty cover?
          The manufacturer warrants that all structural elements of this crib, including hardware, joints, bolts and mechanical devices shall be free of any defects under normal household use and will be replaced or repaired free of charge for ONE YEAR from the date of purchase. You must be the original owner of the crib and must properly use and care for the product as indicated in Section 2 below. Information and/or photographs of the crib may be requested to verify the correct model and condition.

          What is not covered by the crib warranty?
          This warranty shall not apply to damages arising from neglect, misuse, abuse, accidental damage, or commercial use of the product. This warranty excludes the finish or paint coating and is limited to repair or replacement of defective parts only. Cribs purchased through an unauthorized retailer or distributor, any floor models, or second-hand purchases do not qualify for the warranty.

          What if I am a customer located outside of the U.S.?
          Crib warranties are only valid for the country in which they are purchased. Kolcraft Enterprises, Inc. may not ship replacement products or parts to countries where such products do not comply with local regulations, even in the event that the original product was purchased in the U.S. Replacement products that do comply with local regulations may incur a shipping fee and are subject to customs, taxes, and duties of the country in which the product is being shipped to. If the product was sold through an authorized distributor, Kolcraft Enterprises, Inc. will provide appropriate distributor information and replacements may only be offered through your local distributor.

          How do I contact Kolcraft Enterprises, Inc. for warranty service?
          To obtain warranty service, please contact Kolcraft’s Customer Service Department. If the product is returned to Kolcraft’s Customer Service Department for repair or replacement, it must be shipped prepaid and adequately insured.
          Please direct any comments, questions or requests to: Kolcraft Enterprises, Inc. Customer Service Department, 1100 West Monroe Street, Chicago, IL 60607, 1-800-453-7673 in the U.S. and Canada, 1-312-361-6315 outside the U.S. and Canada, Monday-Thursday 8 a.m.- 5 p.m. and Friday 8 a.m. – 3 p.m. Central Standard Time. Click here to contact customer service.

          Proper Crib Care and Maintenance
          After completing assembly, check that all bolts and screws are secure and tight. Hardware can become loose over time, so it is your responsibility to periodically check the tightness of all fasteners as long as you use the crib. Wood is a natural material and as such, it can be affected by changes in temperature and humidity. Extreme changes in humidity and temperature can cause the wood to warp, swell, crack or shrink, thus compromising the structural integrity of the crib and making it dangerous to use. Cribs should always be stored indoors in climate controlled, dry locations. Use care when using a vaporizer or humidifier around the crib. Do not aim the vapor at the crib or any other wooden furniture in the nursery. Avoid using vaporizers or humidifiers for extended periods of time.
          To clean the crib, wipe with a damp cloth and immediately dry the surface. Do not use any chemical cleaners or polishes. Such products can leave a residue on the finish and come in contact with your child. Your crib has a durable and protective non-toxic finish, however if you decide to refinish it, you must use a non-toxic finish specified for children’s products. Do not use any toxic stripping methods to remove the old finish.

          If you purchased your mattress from and have a warranty issue - call us at 1-800-506-5890

          If you purchased your mattress from another retail store, please call Kolcraft directly.

          Shop Sealy Crib Mattresses

          Butterfly Collection

          Quality cribs in a convenient "Bed-in-the-box" packaging quick to your door

          The Sealy® Butterfly Premium Foam Crib Mattress and Toddler Mattress is a perfect fit for your baby's crib and toddler bed. Made in the USA with American-made CertiPUR-US® Certified foam, the Butterfly ships small, butterflies out and fits perfectly into the crib of your choice.

          The Sealy Butterfly 2-Stage Antibacterial Crib Mattress and Toddler Bed Mattress is a 2-in-1 infant to toddler baby mattress that ships small, butterflies out and fits any crib and toddler bed perfectly.

          An American-made 2-stage grow-with-me crib and toddler mattress-in-a-box designed with a high-density foam side and a comforting soybean memory foam side, all wrapped inside a reinforced waterproof airy knit fabric zippered cover that is breathable on baby’s skin.

          Durable woven cotton fabric cover for enhanced breathability on baby’s skin covers our American-made 2-stage foam crib mattress. Enhanced with a firm infant side foam plus a soy memory foam topper for dual firmness.

          Posturepedic® Support

          With advanced zoned support

          The Sealy Baby Posturepedic Grow 2-Stage baby crib mattress and toddler mattress provides one-of-a-kind targeted support with the Posturepedic® Advanced Zone Support System.  The targeted areas create support and comfort where infants and toddlers need it most.

          The Sealy Baby Posturepedic Grace 2-Stage Hybrid infant and toddler crib mattress provides one-of-a-kind targeted support with the Posturepedic® Advanced Zone Support System.

          Cool & Comfortable

          Cooling covers with soybean comfort layers

          The Sealy® OptiCool™ 2-Stage Crib and Toddler Mattress offers lightweight spring-free luxury with a soybean cool gel memory foam and a hypoallergenic core. A waterproof surface makes this crib mattress easy-clean, while the breathable cotton cover enhances sleeping comfort.

          The Sealy 2-Cool 2-Stage Crib and Toddler Mattress offers cool comfort and protection. A firmer infant side with soy foam and a softer toddler side. This 2-Stage toddler mattress is enhanced with CoolTex waterproof cotton cover for a comfortable night’s sleep.

          One of Sealy's best Crib & Toddler mattresses.  The Sealy Cozy Cool Hybrid 2-Stage crib mattress combines the best of both worlds — a long-lasting innerspring coil system for firm support for infants plus a cozy memory foam topper for cooling comfort for toddlers.

          Breathable & Sustainable

          Sustainable cores with soft rayon from bamboo covers

          The Sealy Airy Night Diamond 2-Stage Crib Mattress is a lightweight, breathable infant and toddler mattress. Designed with a waterproof cover made with rayon from bamboo mesh on the infant side for breathability on baby’s skin and a antibacterial surface on the toddler side, this baby mattress offers a snug crib fit. 

          Sealy® Cotton Cozy Rest™ 2-Stage Baby Crib Mattress offers a luxurious cotton cover with 2 stages of firmness for infants and toddlers. The cozy soft cotton cover is both waterproof and stain-resistant. The 204 premium steel coil system that creates ultimate mattress firmness, enhanced with border wire along the edges.

          Light & Airy

          A feather-light core and comfort topper keeps baby supported yet comfortable

          The Sealy® EverLite™ Foam Crib and Toddler Mattress features a spring-less dual-stage design with a firmer infant side, as recommended by doctors, and softer toddler side for extra comfort.  A feather-light hypoallergenic poly core creates a firm and durable sleeping foundation for baby.

          The Sealy® FlexCool™ 2-Stage Crib and Toddler Mattress offers a firmer infant side with durable steel coils to create a firm sleeping foundation, while the softer toddler side offers a lightweight, airy cushioning that contours to baby’s body for added support and comfort.

          This 2-stage antibacterial baby mattress helps to prevent bacteria from growing on your baby’s mattress. Keep clean, keep healthy, sleep safely with Sealy baby crib mattresses.  The Sealy Orion Lightweight 2-Stage Antibacterial Crib Mattress and Toddler Mattress is a grow-with-me dual firm baby mattress made from lightweight, airy cushioning.

          Crib & Toddler Mattress Pads

          Give any crib or toddler mattress an extra layer of protection

          Shop SealyBaby® Accessories & Furniture

          Furniture and accessories for your little one

          For over 130 years, Sealy® sleep products have been synonymous with comfort, quality, support, and the latest technologies to bring great rest to every kind of sleeper.