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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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 4.5 out of 5 by 15.
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 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
Rated 5 out of 5 by from Great tiddler mattress I wish I'd bought this mattress sooner. My two year old has been sleeping on a poorer quality mattress since he was born. Seeing how great and firm this mattress is, I wish if purchased it from day one for him. He has been sleeping better at night with it. And the protector works great since he often spills out of his diaper. You can't go wrong with this one!!
Date published: 2017-04-06
Rated 3 out of 5 by from Mattress arrived with punctures This mattress perfectly fits the crib I purchased it for - The Storkcraft Modena Convertible Crib - however I was disappointed that when the mattress arrived and I opened the box there were two puncture holes in the mattress. I have now had to return it and order another one. Hopefully it arrives in time! Due to the condition it arrived in I am unable to give any more of a review currently. If you order this make sure it is in good condition before taking the plastic off!
Date published: 2017-02-08
Rated 5 out of 5 by from Best Crib Mattress ever purchased!
Date published: 2017-01-20
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Q & A+



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