Family Homes

The Best Memorial Day Deals on Kid Mattresses (Sales Are Extended, Save up to 60% Off!)

Megan Gray
Megan Gray
Estate sales, yard sales, and antique shops were regular weekend destinations for my brother and me as kids. My parents, always on the hunt for period-appropriate decor for our Staten Island 19th-century house, made sure of it. Since then, I’ve had a love for home design and…read more
updated May 27, 2025
We independently select these products—if you buy from one of our links, we may earn a commission. All prices were accurate at the time of publishing.
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Credit: Viv Yapp

If you have a baby, toddler, or older kid, you want to make sure they’re comfortable and supported while they sleep. Memorial Day weekend is a great time to shop for deals on mattresses. There are a ton of sales still happening, and with savings up to 60% off, these are deals you cannot miss.

Kids at different ages require different levels of support — more firm for younger kids and a little less for tweens and up. I’ve rounded up the best Memorial Day deals on toddler mattresses and twin mattresses from retailers like Sealy, Nectar, Purple, and more, including editor- and expert-approved choices, to get you started.

Sealy Cotton Cozy Rest 2-Stage Baby Crib Mattress
$149$129

If you’re looking for a recommendation on a crib mattress for little ones, I swear by this Sealy option. I bought it after tons of research and used it for both of my sons. It comes with two stages of firmness — one side for infants and another for toddlers — so it lasted for several years. Plus, it comes with high-quality certifications and a waterproof and stain-resistant cotton cover.

$129 at Sealy
Helix Kids Mattress, Twin
$749$562

Cubby writer Stephanie Ganz also did a ton of research and bought this Helix Kids twin mattress for her 4-year-old. It also has the option to be flipped — firm on one side for little ones and softer for older kids on the other side — so her daughter can grow up with the mattress. The Helix also comes with a ton of certifications that ensure it’s made with high-quality, naturally hypoallergenic materials. In addition, the company offers a 100-night sleep trial and a 10-year warranty. Use code MEMDAY25 for 25% off.

$562 at Helix Sleep
MLILY Dream, Twin
$599$399

When Cubby spoke about kid mattresses with Sleep Sherpa Founder Ben Trapskin, he suggested the Mlily Dream mattress, a top seller in his San Diego store. “It is competitively priced and firm enough for great support but still provides excellent pressure relief,” Trapskin says. Plus, it’s on sale for 33% off.

$399 at MLILY
Saatva Youth Mattress, Full
$1,059$859

For kids 3 to 12 years old, the Saatva mattress is a popular choice, earning the top honor from Parents magazine. There’s a flippable innerspring, and both sides feature an organic cotton cover with a water-resistant finish and a bacteria-reducing treatment for added protection. Plus, it includes a 365-night sleep trial and a lifetime warranty. Saatva will remove your old mattress if need be. Get it while it’s $200 off.

$859 at Saatva
Siena Memory Foam Mattress, Twin
$529$179

For her older child, Cubby writer Stephanie Ganz chose the Siena Memory Foam mattress. The cozy memory foam layers provide comfort and support, plus there’s a 180-night sleep trial and a 10-year warranty. With a price tag under $200, it’s also a great deal.

$179 at Siena
Avocado Eco Organic Mattress, Twin
$699$629

For bunk beds and trundles, the Avocado Eco Organic Kids Mattress is a great pick. It has a lower profile (7 inches), plus a supportive organic latex foam and individually wrapped coil build. But what sets Avocado apart is its rigorous material testing. There are no toxic chemicals, off-gassing, chemical flame retardants, fiberglass, or polyurethane foam here. Use code HONOR10 to score 10% off.

$629 at Avocado
Purple Mattress, Twin
$999$799

Supportive and cooling, the Purple mattress with its medium-firm foam and proprietary hyper-elastic polymer grid is great for cradling restless sleepers. The mattress is made in the U.S. and CertiPUR-US and Clean Air GOLD certified. Save $200 on the twin mattress this weekend.

$799 at Purple
Nolah Nurture Kids Mattress, Twin
$919$597

Naturally hypoallergenic and OEKO-TEX certified, this double-sided mattress can be a great choice for kids with allergies. The Nolah Nurture mattress has also earned top honors from The Sleep Foundation, Parents magazine, and Medical News Today. The brand offers free returns within 120 nights if you’re not satisfied, plus a limited lifetime warranty. Grab it while it’s 35% off.

$597 at Nolah
Nectar Classic Memory Foam Mattress, Twin
$998$349

Featuring a medium level of firmness, this gel-infused memory foam mattress is ideal for growing kids (and adults). The Sleep Foundation ranked Nectar’s memory foam mattress the best in its class, and Forbes named it the best mattress for back pain. The 50%-off price tag is a great deal, plus the brand offers free returns and a lifetime warranty.

$349 at Nectar
Leesa Kids Mattress, Twin
$499$424

With a top layer of cushiony medium-firm foam and a middle layer of supportive micro air capsules, the Leesa Kids Mattress is a solid choice for a solid night of sleep. There’s also a 100-night sleep trial and Leesa’s charitable donations (the company donates one mattress for every 10 sold), which make the mattress even more attractive. Save 15% for Memorial Day.

$424 at Leesa
Cooling Green Tea Gel Memory Foam Mattress, Twin
$399$299

Use code MEMORIAL10 to save 10% on the Zinus Cooling Green Tea Gel Memory Foam Mattress. Even though it’s a foam mattress, it features the brand’s proprietary cooling gel for hot sleepers. There’s a softer level of support, plus green tea and charcoal to help eliminate odors, so it’s ideal for teens and preteens.

$299 at Zinus
The One, Twin
$749$599

For kids who run hot, Casper’s Memory Foam mattress is a solid bet. It gives you the comfort of memory foam plus a layer of perforated AirScape foam so sleeping kids can stay cool. Reviewers report that there can be a smell at first, so let the mattress breathe before use. Score this bestseller while it’s 20% off.

$599 at Casper

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