Sealy Baby Ultra Rest crib mattress

Sealy crib mattresses are all quality tested for lasting durability and are GREENGUARD Certified for a healthier sleeping environment.

By Sealy

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$124.98 In Stock

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Description & Features+

  • 204 heavy gauge interlocking steel coils are heat-tempered for strength and durability
  • All-around heavy gauge steel border rods maximize side, corner and edge firmness
  • Steel vertical support bars distribute baby's weight evenly over the entire mattress surface
  • Two non-allergenic layers provide long-lasting comfort and support
  • Staph-Gard® antibacterial cover keeps allergens from clinging to surface
  • Waterproof cover helps protect baby from germs and odors and entire surface can be easily cleaned
  • Fits standard cribs and toddler beds
  • 15 year warranty on workmanship & materials
  • Passes all flammability, lead & phthalate testing and does not contain toxic fire retardants
  • GREENGUARD® Children & Schools Certified: This entire mattress is GREENGUARD® Children & Schools Certified for indoor air quality and low chemical emissions to help create a healthier sleeping environment for your baby

Product Label Contents:

100% Polyester Fiber

Assembled product dimensions: L 51.63 inches x W 27.25 inches x H 5.50 inches x W 14.25 pounds


Available for Shipping to Canada Post
Assembled Height
5.5 in
Assembled Length
51.63 in
Assembled Weight
14.25 lb
Assembled Width
27.25 in
51.63 inches length x 27.25 inches width x 5.25 inches height
Supplier Warranty

Warranty on workmanship and materials.  Kolcraft   Consumer Service Department, 1-800-453-7673 in U.S. & Canada, 910-944-9345 outside U.S. & Canada, or

Supplier Warranty Length
15 years
Product Identifiers
Walmart Item #
Model #

Return Policy+

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 > Return Policy

You can return this item within 90 days from the day you receive your online order.

There are two easy ways to return this item:

  • Return this item to a Walmart store
  • Return this item by mail

From the Manufacturer +

Ratings & Reviews+

Sealy Baby Ultra Rest crib mattress is rated 4.6 out of 5 by 18.
Rated 5 out of 5 by from Perfect Mattress This is one of the best mattresses that I have ever purchased. Super firm, waterproof, fits the crib snuggly and handles all the jumping that my girls do several times a day in their cribs. Very happy with my purchase.
Date published: 2016-01-07
Rated 5 out of 5 by from excellent value for money! we bought this mattress for our 2 year old and its great. a bit more firm than we thought it would be but still provides a great sleep for our boy. more springs for less money than other baby stores.
Date published: 2014-02-02
Rated 5 out of 5 by from Great mattress for a great price ! I bought this mattress for my 2 month old. He sleeps very well on it and seems to be very comfortable. This is the second Sealy mattress I have purchased, the first was for my older child, and have not been disappointed. Delivery was fast and the product arrived in perfect condition. Overall I am very happy and would highly recommend.
Date published: 2017-09-29
Rated 5 out of 5 by from great crib mattress I bought this a month ago and its a great crib mattress
Date published: 2017-08-24
Rated 5 out of 5 by from So comfortable! I have a crib that my children used when they were babies, but had no mattress. We bought this one and it fits into the crib like a glove. I put my grandson in and he fell asleep immediately. So comfy!
Date published: 2017-07-31
Rated 4 out of 5 by from Good matress Nice and sturdy. My son likes it, sleeps through the night on it. No complaints.
Date published: 2017-05-26
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