SEALY BABY
Sealy Baby Butterfly Breathable Knit Crib Mattress — 52 x 28 x 4.5 in, Waterproof with Removable Brushed Zip-Knit Cover, Greenguard Gold
Sealy Butterfly Breathable Knit Crib Mattress (Model EM900) is a firm foam crib and toddler mattress packaged compressed in a box that unrolls and expands (allow up to 48 hours) to create a firm sleeping surface for standard U.S. cribs and toddler beds. It measures 52 × 28 × 4.5 inches and weighs about 7 lb. The mattress uses CertiPUR‑US® certified foams, is GREENGUARD Gold certified for low chemical emissions, includes a 100% waterproof barrier and a removable, machine‑washable breathable knit cover, meets ASTM crib mattress standards, and carries a 7‑year warranty on workmanship and materials.
- Material
- 150 heat-tempered steel coils; eco-conscious comfort layers; waterproof cover (brushed Zip Knit)
- Style
- sustainable
- Category
- Baby & Toddler > Baby Safety
Size
- GTIN
031878263389- MPN
SEALYBABY-031878263389-NEWOVERSTOCK-NOBOX
Specifications
Breathable, waterproof Sealy crib mattress with 150 heat-tempered steel coils, eco-conscious comfort layers, Greenguard Gold and CPSIA certifications; fits standard 52" x 28" cribs and toddler beds.
150 heat-tempered steel coil support for firm, long-lasting support; eco-friendly comfort layers; 100% waterproof cover that easily wipes clean and resists stains; breathable airflow design that avoids small vent holes; expert-tested firmness; fits standard U.S. cribs and toddler beds; 10-year warranty.
- Material
- 150 heat-tempered steel coils; eco-conscious comfort layers; waterproof cover (brushed Zip Knit)
- Style
- sustainable
- Occasion
- everyday
- Gender
- unisex
- Age Group
- infant
- Condition
- new
- Dimensions
- 52x28x4.5 in
- Category
- Baby & Toddler > Baby Safety
Additional Attributes
- Brand new item
- Does not ship in original box
- 150 heat-tempered steel coils
- American-made coil support
- Firm, long-lasting support
- No memory foam or polyurethane foam
- Eco-friendly construction
- Safer, earth-conscious comfort layers
- 100% waterproof cover
- Cover easily wipes clean
- Resists stains
- Reinforced edge binding
- No leaks or odors
- Breathable airflow design
- Promotes a cooler sleep
- Breathable design without small vent holes that trap moisture
- Expert-tested to meet recommended firmness levels
- Helps reduce the risk of suffocation
- Provides support from newborn through toddler stages
- Fits standard U.S. cribs and toddler beds
- Measures 52" x 28"
- Backed by a 10-year warranty
- Greenguard Gold certified for low chemical emissions
- Non-toxic certified
- CPSIA compliant
- Free from harmful substances
Image Analysis
10 images- 01high
Studio product photo of a white Sealy baby crib mattress with a diamond-quilted cover. A wrap-around product label near the top shows the Sealy logo, the product name "Butterfly" and the phrase "BREATHABLE KNIT," plus a small baby photo and mattress illustration. A green UL GREENGUARD Gold certification badge is visible on the lower right of the mattress.
OCR: Sealy Baby Butterfly BREATHABLE KNIT GREENGUARD GOLD ULbaby crib mattresswhite mattress coverdiamond/quilted textured fabricproduct label band (wrap-around) near topSealy logo (blue and white)brand name: Sealy Babyproduct name: ButterflyBREATHABLE KNIT text on labelsmall photograph of a sleeping baby on labelmattress diagram/illustration on labelfeature icons on label (small colored icons)green GREENGUARD certification badge (UL GREENGUARD Gold)blue and orange accent panels on labelthin side label with Sealy logowhite background (studio product shot)- 02high
Promotional product image showing a white crib with a white mattress and a small plush toy inside. Measurement graphics indicate mattress dimensions of 28" by 52". The image includes certification badges (GREENGUARD Gold and CertiPUR-US) and the Sealy Baby logo, with headline text stating the product is certified safe and designed to fit cribs and toddler beds. The background is a teal/aqua gradient.
OCR: Certified Safe and Designed to Fit Cribs and Toddler Beds 28" 52" Greenguard Gold® and CertiPUR-US® certified, made with safe materials, and fits all standard cribs and toddler beds. Sealy Baby (also contains certification badge text: "GREENGUARD GOLD" and "CertiPUR-US")white baby crib (frame with vertical slats)mattress inside crib (white/off-white)small plush toy / pillow (light gray, whale or animal shape) on mattressdimension arrows and labels: 28" (width) and 52" (length)blue measurement arrows/linestop heading text: product claimbottom paragraph text: certification statementUL GREENGUARD GOLD certification badge (green)CertiPUR-US certification badge (green/white)Sealy Baby logo (blue and white) in lower rightteal/aqua gradient backgroundfloor shadow under cribwhite circular labels behind measurements- 03high
Promotional product graphic for a Sealy Baby mattress protector/cover showing two photos: a mattress surface with water droplets (illustrating waterproof protection) and a close-up of the knit fabric (illustrating soft, breathable cover). Right side includes Sealy logo and benefit text describing waterproof protection and breathable fabric.
OCR: Sealy Baby Waterproof Protection for Easy Cleaning A waterproof barrier shields against leaks and spills, keeping the mattress fresh and dry. Soft and Breathable Fabric Cover A soft knit cover is breathable on baby's skin and helps dissipate heat.mattress surface / mattress protectorwater droplets on mattress (illustration to show waterproofing)close-up fabric texture (soft knit cover)Sealy logo (bow-shaped emblem with Sealy script and 'Baby')heading text blocks / product benefit textbody text / description paragraphsrounded rectangular image framesmint / teal gradient backgroundsubtle horizontal dividing linesdrop shadows and highlights on product images- 04high
A peacefully sleeping infant wearing a gray onesie lies on a light background with a headline above that reads "Quality and Expertise Built Over Decades." A subtitle beneath the headline references CPSIA & ASTM safety standards. A row of certification and award logos (ASTM, CPSIA/CPSC compliance, Made in USA, safety promise badge, #1 Most Trusted, winner laurel, CertiPUR-US, GREENGUARD GOLD) is displayed along the bottom over a teal gradient.
OCR: Quality and Expertise Built Over Decades Meets CPSIA & ASTM safety standards, preferred by more families in the USA, and designed with years of innovation. ASTM Complies with CPSIA & CPSC Standards MADE IN USA #1 MOST TRUSTED Winner CertiPUR-US GREENGUARD GOLDsleeping baby/infant lying on sidegray long-sleeve onesiecurly dark hairheadline text at topsubtitle/explanatory text below headlinerow of certification and award logos/badges (8)ASTM logo (blue)CPSIA/CPSC compliance badge (teal)Made in USA badge (round with flag)green safety/sleep promise badge with leaf and baby icon#1 Most Trusted black circular badgewinner/award laurel badge (red)CertiPUR-US circular badge (green)GREENGUARD GOLD badge (green square)soft hexagonal background pattern behind babylight-to-teal gradient background at bottom- 05high
Close-up product image showing a hand unzipping a white removable zip-off cover on a quilted mattress surface. The image includes overlay headline and subtitle text on a teal/aqua gradient background describing the cover's features (easy unzipping, machine washing, water resistance).
OCR: Removable Zip-Off Cover Designed for easy unzipping, hassle-free machine washing, and water resistance.human handzipper pull / sliderzipper trackremovable zip-off cover (white fabric)quilted mattress surfacefabric texture (diamond quilt pattern)rounded rectangle product frameteal/aqua gradient backgroundoverlay text / product feature headlinesubtitle text description- 06high
Promotional product image showing a white Sealy crib mattress on a teal gradient background with feature icons and callouts. Headline reads 'Smart Sustainable' with subheadline 'Crib Mattress Design'. Five icons and labels describe product features (removable washable cover, breathable knit surface, rolls out firm & flat, lightweight foam only 7 lbs., snug fitting square corners). Sealy Baby logo appears in the bottom-right.
OCR: Smart Sustainable Crib Mattress Design Removable, Washable Cover Breathable Knit Surface Rolls Out Firm & Flat Lightweight Foam, Only 7 Lbs. Snug Fitting Square Corners Sealy Babycrib mattress (white, rectangular)removable washable cover icon (zipper symbol)breathable knit surface icon (cloud symbol)rolls out firm & flat icon (rolled mattress/circle symbol)lightweight foam icon (feather symbol)snug fitting square corners icon (square corner symbol)callout lines connecting icons to mattressfeature text labels under each iconheadline text: 'Smart Sustainable'subheadline text: 'Crib Mattress Design'orange underline beneath headlineSealy logo (bottom-right, bow-tie shape) with 'Baby' textsoft drop shadow under mattresstextured knit pattern on mattress surfacegradient background (green/teal to lighter center)- 07high
Promotional image showing a person (hands and torso visible) placing or removing a light-gray quilted, zip-off cover into/from a front-loading washing machine. A teal gradient banner at the top contains the headline 'Machine Washable Cover' and a short explanatory sentence about machine-washing the zip-off cover.
OCR: Machine Washable Cover The zip-off cover can be machine-washed for the ultimate cleanliness.front-loading washing machineopen washer doorwasher control panel and dialquilted/diamond-pattern fabric cover (light-colored)person's forearms and hands handling fabricperson's torso wearing a teal/green long-sleeve topperson wearing blue jeanswashing machine drum interiorpromotional text overlay at topteal/green gradient background bannermetallic/silver washer door rim- 08high
A sleeping baby in a white long-sleeve onesie lies on a white diamond-quilted mattress. To the right is the Sealy Baby logo and prominent promotional text reading "VOTED THE #1 MOST TRUSTED BRAND IN AMERICA*." Three circular seals appear near the bottom (Made in USA with flag, a #1 Most Trusted badge, and an America's #1 crib mattress brand badge), with small fine print along the bottom.
OCR: Sealy Baby VOTED THE #1 MOST TRUSTED BRAND IN AMERICA* MADE IN USA 100% QUALITY #1 MOST TRUSTED AMERICA'S #1 CRIB MATTRESS BRAND *Voted most trusted Mattress brand by American shoppers based on the 2021 BrandSpark® American Trust Study.sleeping baby/infantwhite long-sleeve onesiequilted white mattress surfaceSealy logo (blue diamond shape with "Sealy" wordmark)small "Baby" word under logolarge promotional headline text#1 (number in headline highlighted)three circular seals/badges (left: Made in USA with flag, center: #1 Most Trusted black badge, right: America's #1 crib mattress brand blue badge)American flag icon (inside left badge)fine print/legal text at bottomdiamond-quilt pattern texture on mattress coversoft lighting- 09high
Advertisement-style image showing a smiling woman lifting a baby in the air against a teal/mint gradient background. Headline at top reads 'Firm and Safe for Babies' and a speech-bubble style callout states 'Firmness tested to help reduce the risk of suffocation.' Sealy Baby logo appears in a white circular area at the bottom right.
OCR: Firm and Safe for Babies Firmness tested to help reduce the risk of suffocation. Sealy Babyadult woman (mother) holding a babyinfant/baby wearing a diaperwoman smiling and looking up at babybaby looking down at womanadvertisement layoutheadline text at topspeech-bubble style callout with copySealy Baby logo (bottom right)gradient teal/mint backgroundwhite rounded speech bubblewoman in sleeveless topbaby being held in air (playful pose)product safety claimstudio/stock-photo style imagesoft lighting- 10high
A bright nursery scene showing a modern white baby crib with a mattress and a light aqua knitted decorative pillow. The crib stands on wooden mid-century legs on a hardwood floor with a round white shag rug in front. White sheer curtains frame a window and a beige wall forms the background. A banner at the top reads 'SNUG FIT in BABY'S CRIB'.
OCR: SNUG FIT in BABY'S CRIBwhite baby cribmattresswhite fitted sheet/mattress padlight aqua/teal decorative pillow (knitted texture)white round shag rughardwood floorwooden mid-century style crib legswoven basket with handleswindowwhite sheer curtainsbeige/tan wallbaseboard/trimslatted crib railstop banner/graphic with textyellow underline/accent in bannersoft natural light / shadows on floor
Brand PDP Lookup
- Brand
- SEALY BABY
Sealy Butterfly Breathable Knit Crib Mattress
Documents & Data
Customer Reviews
50 reviews · out of 5
Item was like new
Bought a swing and it looked untouched. So happy.
Was just as described
Was just as described. Quick shipping and communication.
The products were very good
The products were very good. More than I’d expected them to be. The color of the diaper bag is beautiful and I know my daughter in love will be happy with it.
Bouncer worked fine
Bouncer worked fine. Was a little worried when it showed up but it was perfectly fine!
Amazing value
Saved a ton on a big item. Thank you, Kidsy!
So easy to use
Website is easy to use, items are great quality, and shipping is fast.
My item shipped very quickly and I…
My item shipped very quickly and I received it about 3 days after I ordered it! It came in an extra protected box as well! Very pleased with my purchase!
Smooth purchase
Smooth from checkout to delivery.
Great product
I was impressed with the shipping and the item I got looked brand new. Great product and I’ll be ordering again.
Kidsy had exactly the baby/pet gates we…
Kidsy had exactly the baby/pet gates we needed...good price...good shipping...good items. If you have children or know someone who has children...this site is a keeper! They get 10 stars!!
less money less hassle
Found an item still in its original packaging for 2/3 of the original pricing.
Great deal
Got a travel system for a great price. Would recommend Kidsy.
Looks unused
Couldn’t even tell the stroller had been returned.
Good prices and fast shipping
Good prices and fast shipping
I purchased a glider
I purchased a glider. It was described accurately, shipping was fast and price was great!
Exactly what I needed
Found the exact baby item I needed for half the cost.
Fast and efficient
Got my item fast and it was in excellent shape.
Very happy
Really happy with my order. Shipped fast and clean.
Highly recommend
A friend told me about Kidsy and I’ve already ordered twice.
Just like described
Item matched the listing perfectly.
Quick response
Ordered a gate prior to this one, UPS lost it on route. I reached out to Kidsy via email and they secured a refund from UPS. Was hesitant to order again, but I couldn't find the gate at a more reasonable price. 2nd order arrived with no issues. Gate is sturdy and the dog (Husky) hasn't gotten through it (he's an escape artist). Quick delivery from start to finish.
I appreciated the detailed description
I appreciated the detailed description, I knew I was getting a floor model and it came in perfect shape at a much reduced cost. When I thought the cupholders weren't included, I reached out to them and then we found them and they were very responsive and thankful that I let them know. Everything is fine.
Fast delivery
Order arrived in 2 days and looked perfect.
Great deals, easy to use site
Great deals, easy to use site
Perfect
Everything arrived exactly as expected.
Love Kidsy!
I’ve ordered a few items from Kidsy now and all have been great.
Looks like new
Couldn’t believe how good the condition was.
Great, trustworthy experience
Great deals, easy checkout with lots of payment options, shipped very quickly, and everything was packed well and looked exactly as it was described! I didn't end up needing any intervention with my shipping experience but appreciate the option to cover lost packages for a minimal fee, especially as we get into the late and lost package holiday season. I'll definitely be getting more of my baby gear from Kidsy.
Easy process
Super easy to order. Arrived on time and in great shape!
Great price and fast delivery.
Great price and fast delivery.
Love my stroller
Love my stroller. Great deal and great service.
So grateful
Found what I needed at a price I could afford.
Would buy again
Everything was smooth and the item was as described.
Quick delivery and items in great…
Quick delivery and items in great condition!
Everything was great
Fast shipping, clear product info, no surprises.
Would recommend
Already told two friends about Kidsy.
Better than marketplace
Safer and easier than buying used on Facebook.
Better than expected
Everything came packaged well, looked brand new. Super impressed.
Great for parents
Shopping for gear doesn’t have to break the bank.
Good experience
Item arrived just as described. Couldn’t be happier.
Kidsy Customer Service Review
Kidsy had a great selection of deeply discounted baby gates. Unfortunately, there was a piece missing when I received my package. I didn't realize it until after the 14 day return/exchange window. But I reached out, and they were willing to send me the piece anyway at no extra charge. I really appreciated the customer service.
Stroller came super fast and I love it
Stroller came super fast and I love it
The best prices going and shipping is…
The best prices going and shipping is fast.
Great service
I’m so happy with my experience. Kidsy shipped my order quickly and it was in great condition.
Quick and easy
Couldn’t believe how simple the process was.
Worth it
Got a like-new monitor for under $50.
Holly
Stocked my home for visits from the grandkids.
Was pleased with the car seat I bought…
Was pleased with the car seat I bought from Kidsy. It was in the condition they described and arrived quickly. Thank you!
Thank you!
Thank you! Great prices and great items.
Good stuff
Love the gear I got for my twins.
Q&A
7 answered7 Questions Answered
5 high confidence · 1 web-sourced
What safety / chemical-emissions certifications does this mattress carry (e.g., GREENGUARD Gold, CertiPUR‑US)?
We certify that the Sealy Baby Butterfly Breathable Knit Crib Mattress is GREENGUARD Gold certified for low chemical emissions and uses CertiPUR‑US® certified foams. It is also listed as CPSIA‑compliant, described as “Non‑Toxic Certified” in the product features, and meets ASTM crib mattress safety standards.
product_description; product_features
What is the mattress' internal construction—is the support core steel coils or foam; if coils, how are they configured (150 coils, coil gauge, individually wrapped?), and what are the foam layer types, densities and thicknesses?
Our specification lists a 150 heat‑tempered steel coil support core for firm, long‑lasting support, with eco‑conscious comfort layers made from CertiPUR‑US®‑certified foams and a removable, waterproof breathable knit cover. The listing does not publish coil gauge, whether the coils are individually wrapped, or the specific foam layer types, densities, or individual layer thicknesses, so we can’t confirm those exact measurements from the product data provided.
product_features; product_description
How breathable is the mattress in practice—has the mattress (cover + core) been tested for airflow or heat retention, and is it recommended for babies who tend to overheat?
This mattress uses a breathable knit, removable zip cover plus a “breathable airflow” core design intended to promote cooler sleep and avoid trapped moisture (no small vent holes), and it’s made with CertiPUR‑US foams and GREENGUARD Gold certification for low emissions. The product information does not publish laboratory airflow (CFM) or formal heat‑retention test numbers for the cover+core, so we can’t provide measured airflow or R‑value figures. For babies who run hot, this mattress’s breathable cover and airflow design are intended to help, and we recommend using a single lightweight fitted sheet and following safe‑sleep practices to minimize overheating.
product_features; product_description
Is the 100% waterproof cover vinyl/PVC-free and free of phthalates, BPA or other restricted chemicals?
This Sealy Butterfly has a removable brushed zip‑knit (breathable knit) cover rather than a vinyl surface, and the mattress “meets or exceeds” phthalate and CPSIA testing and is GREENGUARD Gold and CertiPUR‑US certified. The product page does not explicitly state a “PVC/vinyl‑free” or “BPA‑free” claim for the internal waterproof barrier, so we cannot confirm those specific labels from the published specifications.
product_description and Safety & Quality section on Sealy product page
After unboxing a compressed mattress, how long does it typically take to fully expand and reach final firmness, and are there any common reports of residual indentations or soft spots?
Allow up to 48 hours after unboxing for this mattress to fully expand and reach its final firm sleeping surface (most expansion happens in the first few hours, but full recovery can take the full 48 hours). With 150 heat‑tempered steel coils and expert‑tested firmness and comfort layers, residual indentations or soft spots are uncommon based on the product’s specifications and testing.
product_description; product_features
Is the 4.5-inch thickness appropriate for use in a toddler bed with guardrails—will standard guardrails seat securely and maintain safe spacing from the mattress surface?
Yes — at 4.5 in this Sealy Baby Butterfly Breathable Knit Crib Mattress is sized for standard U.S. cribs and toddler beds and is thinner than the common 6 in maximum used by many toddler‑bed conversion kits, so standard guardrails will generally seat securely and maintain the required spacing under CPSC/ASTM guidance. Confirm the specific guardrail or conversion‑kit instructions for their recommended maximum mattress thickness before final installation. [1][2]
Sources
CPSC guidance on toddler beds (ASTM F1821) and Pottery Barn conversion‑kit recommendation (max 6 in); product description noting 4.5 in thickness and fits standard toddler beds.
Do the GREENGUARD Gold and CertiPUR‑US certifications (and the stated 100% waterproof barrier) apply to the entire mattress assembly (cover, core, adhesives) or only to specific components?
We use CertiPUR‑US certified foams for the mattress core (CertiPUR‑US certifies the foams specifically), while GREENGUARD Gold is listed as an air‑quality certification for the product/materials (the product page notes materials are air‑quality tested). The 100% waterproof barrier is part of the cover assembly to prevent leaks from seeping into the interior foam/coils. [1]
product_description / features (manufacturer product page)