Sealy Baby - Ultra Rest Crib and Toddler Mattress

By: Sealy
Walmart #: 260050121
Sealy Baby - Ultra Rest Crib and Toddler Mattress
Was: $79.98  (You save $5.00)
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  • 204 Heavy gauge interlocking steel coils are heat-tempered for strength and durability
  • All-around border rods keep sides, corners and edges firm

Gifting note: This item ships in the manufacturer's original packaging. If intended as a gift, the packaging may reveal the contents.

About this item

The Sealy Baby Ultra Rest Crib and Toddler Mattress supplies a 15-year warranty on workmanship and materials. It is interwoven with heavily constructed steel coils for added firmness and lasting durability. Vertical support bars and all-round border rods prevent this waterproof crib mattress from dropping. Double support and comfort layers adds rigidity, yet provides a comfy sleeping surface. The cover of this Sealy Baby Ultra Rest mattress is waterproofed to wipe clean easily with a damp cloth. It is also Staph-Guarded to inhibit the development of bacteria. The Sealy Baby Ultra Rest Crib and Toddler Mattress with ventilation pockets remove excess moisture to keep it odor-free. It fits standard-sized cribs and toddler frames. This Sealy Baby Ultra Rest mattress meets or exceeds all flammability and lead testing and does not contain toxic fire retardants.

Sealy Baby Ultra Rest Crib and Toddler Mattress:

  • Features 204 heavy-gauge steel coils interwoven for a firm foundation
  • All-around border rods on this waterproof crib mattress keep the sides and edges firm just like an adult mattress
  • Steel vertical support bars distribute weight evenly over the entire mattress surface
  • 2 non-allergenic layers provide lasting durability and support on the Sealy Baby Ultra Rest Crib and Toddler Mattress
  • Staph-Guard hospital-grade protection helps prevent bacteria growth
  • Wet-proof reinforced cover and binding resist liquids and stains and wipes clean with soap and water
  • Waterproof lock-stitched binding helps prevent mold, mildew, and odor
  • Airflow pocket helps keep mattress fresh without the use of small metal vents
  • Sealy toddler and crib mattress features a 15-year warranty on workmanship and materials
  • Sealy Baby Ultra Rest mattress fits all U.S. standard size cribs and toddler frames
  • Sealy toddler and crib mattress meets or exceeds all flammability and lead testing and does not contain toxic fire retardants
  • Sealy Baby Ultra Rest mattress model #EM435-SOP


Age Start: Birth
Age End: +
Model No.: EM435-SOP
Shipping Weight (in pounds): 14.3
Product in Inches (L x W x H): 51.625 x 27.25 x 5.5
Assembled in Country of Origin: USA
Origin of Components: USA
Walmart No.: 260050121

Customer reviews

Customer Reviews | 459 reviews | 4.6 out of 5

4.5 stars

459 reviews | 4.6 out of 5

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Customer review by smartbuyer2010

5.0 stars by smartbuyer2010

I throughly researched crib mattresses before buying this mattress because of the vast difference in prices between mattresses. I wondered what's the big difference. Well, there are two main things to look for in a crib mattress, 1) the number of coils (the higher the better) and 2) a steel ring or edge around the mattress (to prevent sagging when the baby stands on it, and to prevent edge sinking where they could catch a foot, etc). This mattress had both features at the best price, by far.

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Wildomar, CA
Would recommend to a friend? Yes
Age:25 - 34
Absolutely perfect--LOVE LOVE LOVE IT!

Customer review by weaselby

5.0 stars by weaselby

I can't adequately explain how great this mattress is. It was among my top picks from researching specifications and reviews on,, and I picked it because our son grew so fast and we needed to get him in a crib asap, and this was one of 3 cribs available at our local Walmart, but the only one with side supports--very important when they start standing, I've read, so 1. the sides don't collapse and get their feet stuck, or 2. allow edge breakdown over time so the sides dip and allow your baby to roll down the incline and get trapped between crib side and mattress, which leads to suffocation. I was also very excited about the waterproof, antibacterial cover, and the measurements were ideal for my crib. The size is perfect. The mattress fits my Storkcraft 4-in-1 crib/changer perfectly, and the cribsheets I git at Walmart (2 for $11, I forget the brand) fit snugly while providing secure, full coverage. The cover is perfect: I just wipe it down with a Lysol wipe when we have to change the sheet. No plasticky, crinkly sound when our baby moves. We'll have to get and absorbent mattress pad for when we start potty training though, because accidents will just run off the sheets and mattress--that's a good thing, no ruined mattress! It's a good weight and I can easily maneuver it in and out of the crib, and I'm 5'4". Now, a note about firmness. Infant mattresses need to be firm. That doesn't mean hard, necessarily. You need a mattress that doesn't sink, like soft adult mattresses do, because infants' weight creates sinkholes in squishy mattresses and they roll easily into them, can't get out, and suffocate. So basically, look for a mattress that isn't SQUISHY and that you can't feel the coils through and you'll be fine. Forget this hard/soft nonsense, it's so frustrating to mattress shop and half the people say it's too hard and the other half, too soft. And just buy this mattress. It's perfection for a VERY good price. I would suggest going to the store if they are there to inspect and handle the nattresses to get the best and avoid the problems a lot of people had with shipping and handling damage. Proof that my baby also loves this mattress: He's been sleeping 8-9 hours a night since we put him on it at 6 weeks old. Can't argue with that! This article was very helpful in my research and shopping:

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Would recommend to a friend? Yes
Age:18 - 24
Ownership:2 - 7 weeks
Usage:Every day
Not too Hard, Not too Soft, Just Right!

Customer review by onemum

5.0 stars by onemum

This mattress is perfect for our baby who is 12 months old. It is firm enough that it is safe, but soft enough that it is comfortable. It was a little bit creaky when laying my baby down at first, but after a few weeks that went away completely. I lay my baby down after he falls asleep in my arms and he stays asleep as I set him down (which doesn't always happen with the pack-n-play) and he sleeps through the night on it. In the morning when he wakes up he even enjoys being in his crib and bounces on the mattress. This mattress is exaclty what we expected for the price.

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Logan, UT
Would recommend to a friend? Yes
Age:18 - 24
Ownership:2 - 7 weeks
Usage:Every day
1-3 of 379 total reviews See all

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Product warranty: 15 years See details

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