Sealy Brilliant Nights 2-Stage Dual Firmness Crib and Toddler Mattress: Hypoallergenic, Waterproof, Innerspring, Vinyl Cover
$79.99
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This mattress offers a dual-purpose design, featuring a firm side for infants and a slightly softer side for toddlers, making it a versatile choice for growing children. Its waterproof feature ensures easy cleaning, while the sturdy construction provides excellent support and comfort. Many guests appreciate the mattress's durability and the convenience of no setup required, making it a practical addition to any nursery.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.4 out of 5 stars with 51 reviews
design: 4 out of 5
ease of setup: 4.8 out of 5
safety: 3.4 out of 5
82% would recommend
17 recommendations
5 out of 5 stars
Thumbs up graphic, would recommend
11 December, 2025Verified purchase
Great mattress for the price and made in the US!
Wanted a mattress made in the US. Seems very sturdy and I like that there are two sides- one for baby, other side for toddlers. Price was very good. Granddaughter slept well on it.
1 out of 5 stars
Thumbs down graphic, would not recommend
8 December, 2025Verified purchase
HUGE GAP!
This crib doesnt fit well! I disregarded old reviews about there being a gap between mattress and crib frame. Theres at least .75 inch gap in the width of the mattress. This will be returned. Very disappointed, waited 5 days to arrive just for it to NOT fit as described it would! :(
1 reply from Kolcraft-Sealy Baby team - 4 months ago
Hi, the Sealy Brilliant Nights 2-Stage Dual Firmness Crib and Toddler Mattress passes all the latest ASTM tests for proper crib fit sizing. All Sealy crib mattresses will fit USA standard full size cribs as they are fit tested and pass ASTM standards for proper fit.
5 out of 5 stars
26 March, 2025
originally posted on influenster.com

Infant / toddler mattress
[This review was collected as part of a promotion.] How this mattress is shipped is super convenient. There’s literally no set up required which is nice huge plus that this is a dual purpose with a firm side for infants and as your baby transitions to a toddler, it’s a smidge softer. Has great support very comfortable. Great value for your money.
5 out of 5 stars
26 March, 2025
originally posted on influenster.com

Great product
[This review was collected as part of a promotion.] This is what all moms need for the kiddos. This is a waterproof mattress, easy to clean and it is really bouncy and comfortable. Also safe for those kids that sleep on their bellies.
4 out of 5 stars
26 March, 2025
originally posted on influenster.com

Mattress
[This review was collected as part of a promotion.] I received this for free in exchange for my honest review. This mattress has two sides to it, one is softer and the other is firmer. The description states that it has coils, which is probably why I feel like it isn’t as comfy in terms of texture compared to other baby beds I have felt before. The good thing about this mattress is that it is waterproof so a mattress cover might not be needed depending on preference. The bad thing about it is that the mattress doesn’t seem breathable due to it being waterproof compared to other mattresses that are waterproof. It fits in the crib perfectly and isn’t too heavy.
5 out of 5 stars
25 March, 2025
originally posted on influenster.com

amazing
[This review was collected as part of a promotion.] This is a great mattress!! My baby loves sleeping on it and it’s even better that it can flip over for when she is older because one side is more firm
5 out of 5 stars
25 March, 2025
originally posted on influenster.com

Best toddler mattress
[This review was collected as part of a promotion.] I’m so happy that i am able to get this mattress because i have a toddler she can use this. The mattress is okay not that firm and not that soft. It looks durable hope we can use it for a long time.
5 out of 5 stars
25 March, 2025
originally posted on influenster.com

Supportive and Wellmade
[This review was collected as part of a promotion.] This bed toddler-newborn mattress feels sturdy and well made. The coils help keep it firm and comfortable. The newborn side is labeled on the mattress, which is more firm. I like that it’s waterproof, so you can just do a spot clean and not worry about it seeping into the seams. Overall, we like the dual sides in case the kiddo likes a firmer side. It’s well made, seems comfortable and supportive.
5 out of 5 stars
23 March, 2025
originally posted on influenster.com

Comfortable, washable
[This review was collected as part of a promotion.] I waited a few days to review this mattress. Honestly my baby has never slept so sound! It’s washable, so it’s great for babies and toddlers. It’s also extremely durable my oldest had some fun pretending to sleep on it too! Provides an excellent form of support for your little one to have a safe and sound sleep.
5 out of 5 stars
20 March, 2025
originally posted on influenster.com

Sealy kids mattress
[This review was collected as part of a promotion.] It’s definitely nice toddler friendly mattress . It’s is extremely durable, 2in1 will work for newborns and older kids . Great fit for our crib . Love the waterproof part of it , makes mom’s life easier! It’s soft and comfy but still provides important support for my sons back . And it is not overpriced, worth the money !
5 out of 5 stars
20 March, 2025
originally posted on influenster.com

Good
[This review was collected as part of a promotion.] This feels super comfortable! Our baby has gotten use to our bed and loves it so thankfully this seems just as comfortable and he slept in this last night without waking up!
5 out of 5 stars
Thumbs up graphic, would recommend
20 September, 2023Verified purchase
Mattress
Nice came nicely boxed undamaged
5 out of 5 stars
Thumbs up graphic, would recommend
22 April, 2022Verified purchase
Happy with it
Had this mattress for almost a year, my son is 15 months, transition into a crib around 6 months old and haven’t had any problems with this mattress. He’s big for his age and it’s held up really well
2 out of 5 stars
Thumbs down graphic, would not recommend
6 April, 2022
Soft & Breaks down quickly
Upon initial crib set up, the "infant" side seemed especially soft. Several times in that first year I'd doubt myself and double check, thinking I accidentally had it on the "toddler" side. However, I didn't think it was unsafe initially. After about 8 months of regular use though, the center - all but about a 3 inch wide perimeter- was sagging & noticeably broken down. That edge was/is still appropriately firm. Definitely won't make it through the toddler bed years.
5 out of 5 stars
30 September, 2021Verified purchase
Sweet Dreams for Baby
This was a wonderful shower gift for my niece who chose this for her baby registry after doing all the research!!! It came perfectly boxed up & delivered on time for her new baby to enjoy!
1 out of 5 stars
10 May, 2021Verified purchase
GAP - mattress not as wide as it should be
Purchased this mattress as Ive had great experience with Sealy in the past, but noticed over a one inch gap upon putting this in my daughter's new crib. If I push on the mattress at all it gets much bigger. Baby mattresses are supposed to be less than half an inch gap from the crib. I'd recommend another sealy mattress, or maybe this one is just a QC issue. Either way, please check to be sure your crib is safe for your baby!
1 reply from KolcraftStaff team - 5 years ago
Hello and thank you for your feedback. The Sealy Brilliant Nights 2-Stage Dual Firmness Crib and Toddler Mattress measures at 52 x 27.5 x 5.5 inches and fits both USA standard size cribs and toddler beds. If your mattress does not meet the dimensions shared, please contact us directly at 1-800-453-7673, thank you!
5 out of 5 stars
Thumbs up graphic, would recommend
18 April, 2021Verified purchase
Great mattress
Bought it for my first born, and just bought a second mattress for baby number 2 on the way. Great deal and great mattress
5 out of 5 stars
Thumbs up graphic, would recommend
17 December, 2020Verified purchase
Perfectly just as described
The mattress is amazing both sides are perfect for the ages of the child the infant side is firm enough and soft enough to be the perfect level of comfort for the child. I’m so glad I bought it, and let’s not forget about the waterproof addition to this mattress. 
5 out of 5 stars
12 October, 2020Verified purchase
Nice mattress
I bought this mattress for my daughter before she had the baby to set up her nursery. It is nice because it is soft enough on top, but not too soft for an infant. Her baby girl is 7 months now and seems to like it. She wakes up smiling every time!
4 out of 5 stars
13 May, 2020Verified purchase
(no review title)
Seems like a fine crib/toddler mattress: easy to clean surface, labelled for which side is which. It was however too small for our Babyletto crib (there was about 1.25 inch gap along the side when the mattress was pushed to one side and I could fit my arm down through the corner). I'd recommend double checking your crib dimensions since there are some variations in mattress sizes.