It is made with a high-density thermo-bonded polyester fiber core that offers ample ultra firm support for your little one.  This lightweight and durable mattress is then wrapped with a 100% Vinyl outer cover that is waterproof and stain resistant to wipe clean in an instant.  The Nighty Night crib & toddler bed mattress fits standard cribs with internal measurement of 28⅝ in.  X 53 in.    Perfect for a night of sweet dreams! 
 Made with an ultra firm high-density thermo-bonded polyester core that is lightweight and durable and a 100% vinyl outer cover that is waterproof and stain resistant to wipe clean instantly.  Square corners ensure snug fit in crib and toddler beds. 
   as an America's Most Recommended(tm) brand for Crib & Toddler Mattress
 The baby mattress has achieved GREENGUARD Gold Certification.  GREENGUARD Certified products are certified to GREENGUARD standards for low chemical emissions into indoor air during product usage
 Shipped in a bag.  Assembled in Canada, made of imported textiles.   Fits standard size cribs and toddler beds with internal measurements of 28⅝ in.  X 53 in.  Made without the use of flame retardant chemicals. 
 Mattress dimensions: 54"L x 27. 5"W x 5"H.  Weight limit: 50 lbs.  Net weight: 7 lbs.  Shipping dimensions: 52"L x 28"W x 5"H.  Gross weight: 10 lbs.  For optimal use, rotate mattress every 2-3 months. 
  Mattress Type: Innerspring Mattresses
 Mattress Top Type: Tight Top
 Mattress Comfort Level: Firm
 Mattress Thickness: 5. 00 in
 Material: Polyester, Vinyl
 Color: White / Grey
 Maximum Load Weight: 50 lb
 Features: Waterproof
 Manufacturer: Dorel Home Products
 Manufacturer Part Number: 6267039
 Model: 6267039
 Assembled Product Dimensions (L x W x H): 27. 50 x 52. 00 x 5. 00 Inches