The 5 Best Crib Mattresses for Your Baby

Three of the best crib mattresses at Walmart Editor's picks

Choosing a crib mattress might not be as fun as selecting adorable nursery décor, but it’s one of the most important purchases you’ll make for your little one’s room. There are many options to consider before you buy—the type of the mattress, waterproof versus breathable, organic versus conventional—but if your purchase meets Health Canada’s guidelines for thickness and fit (more on that below), you really can’t make a bad call. So, take a deep breath, parents-to-be—this decision is easier than you think, and we’re here to help.

Not ready to pick the right mattress just yet? You might like our crib mattress buying guide that answers all your pressing questions.

Our editor’s picks

Size: 52 inches x 28 inches

Thickness: 6 inches

Warranty: 10 years

Support level: Firm

Material: Polyester

Greenguard certified: Yes

Features: Waterproof, hypoallergenic

  • Easy to wipe clean

  • Thicker than other models

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Size: 52 inches x 27.5 inches

Thickness: 5 inches

Warranty: 10-year limited

Support level: Firm

Material: Polyester

Greenguard certified: Yes

Features: Waterproof

  • Lightweight

  • Quite firm

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Size: 51.7 inches x 27.7 inches

Thickness: 5 inches

Warranty: No

Support level: Firm

Material: Polyester

Greenguard certified: No

Features: Waterproof, hypoallergenic, dual-sided

  • Suitable for wide age range

  • No warranty

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Size: 52 inches x 28 inches

Thickness: 5 inches

Warranty: Full warranty on cover and core

Support level: Extra firm

Material: Cotton

Greenguard certified: No

Features: Hypoallergenic, dual-sided, stain-resistant

  • Naturally mould resistant

  • Not waterproof

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Size: 38 inches x 24 inches

Thickness: 3 inches

Warranty: No

Support level: Firm

Material: Polyester

Greenguard certified: Yes

Features: Waterproof, hypoallergenic, dual-sided

  • Just three pounds

  • Not for a standard crib

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In this guide
Types of crib mattresses
Innerspring crib mattress for a baby Innerspring

Durable innerspring mattresses feature a core of thick metal coils surrounded by cushiony upholstery. Pricier and heavier than other options, they have the best edge support and are the least likely to sag at the sides.

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Foam crib mattress for babies Foam

Polyurethane foam mattresses are lighter and less expensive than their counterparts. Look for the firmest model possible—ideally you want something that quickly regains its shape after being pressed down.

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Dual-sided crib mattress for babies Dual-sided

Also known as a 2-in-1, this style is firm on one side for an infant and slightly softer on the other side for a toddler. Dual or double-sided mattresses are meant to last through your little one’s early years.

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Features to consider

All mattresses sold in Canada need to follow government regulations[1] for fit and firmness. Beyond that, here are some other features you may wish to look for:

  • Sizing: The best crib mattress for your family is the one that safely fits your baby’s crib or toddler’s bed frame. Standard crib mattresses measure around 51 ⅝ to 53 inches long and 27 ¼ to 28 inches wide. Mini cribs are much smaller, usually coming in around 34 inches long and 24 inches wide. Just like cribs, some toddler beds come in standard crib size and some don’t, so crack out that measuring tape before buying. Health Canada recommends you check that the mattress is firm and ensure it fits tightly into the crib with no more than 1 and 3/16 inches (or three centimetres) between the mattress edge and the inside crib frame. It should be no more than six inches thick.[2]
  • Breathable: Some crib mattresses include airflow pockets that boost air circulation in and around the mattress. Because they prioritize air flow, they are also good for babies who sleep hot. Some breathable mattresses are not waterproof, so you might want to skip airflow technology if you’re concerned about leaky diapers.
  • Antibacterial, antimicrobial or hypoallergenic: Hypoallergenic mattresses are tightly woven from natural, breathable materials such as cotton, bamboo, silk or wool. They’re designed to resist dust mites and prevent mould and mildew by dispersing moisture.[3] They may also be treated with an antimicrobial or antibacterial cover to prevent harmful germs from taking up residence.
  • Waterproof: A protective waterproof layer makes for easy cleaning of late-night diaper leaks, plus the plastic barrier prevents water from seeping into the core of the mattress where mould and bacteria can grow. Waterproofing—whether it’s part of the mattress or courtesy of a removable cover—helps keep your mattress stain-free. This is important if you’re passing the mattress down from one baby to the next, or if you’re buying a reversible mattress and plan to get several years of use out of it.
  • Greenguard certified: The Greenguard Environmental Institute is a reputable third-party group that rigorously tests products for harmful toxins. There are two certification levels: Greenguard, which ensures the product meets strict emissions limits, and the more stringent Greenguard Gold that also considers safety factors for sensitive individuals, including children.
  • OrganicOrganic mattresses are made with organic materials and without synthetic chemicals. If you’re in the market for an organic mattress, look for certification from a reputable agency such as the Global Organic Textile Standard.
Safety tips

Health Canada has several safety guidelines for choosing and using a crib mattress:

  • Picking a crib mattress: Make sure that the mattress fits snuggly in your crib with no more than 1 and 3/16 inches (three centimetres) between the sides of the crib and the mattress.[4]
  • Buying second-hand: Only use a second-hand crib mattress if it’s in good condition. That said, if you don’t know how the crib mattress was cared for or stored, it could harbour bacteria, mould or moisture trapped inside.[5]
  • Following manufacturer guidelines: Each crib mattress is designed for a specific age and weight. Stick to these guidelines![6]
  • Choosing sheets: Buy fitted sheets that are designed for a crib mattress of the same size to make sure the sheet can’t come loose. Twin mattress sheets are much larger and shouldn’t be used with a crib mattress.[7]
  • Placing your crib: Keep the crib away from hazards that may fall or drape into the crib, or that your baby may be able to reach from the crib. Some examples include lamps, curtains, windows, blind cords, electrical plugs, electrical cords and extension cords.[8]
  • Putting items in the crib: Keep the crib empty. That means no pillows, blankets, toys or bumper pads.[9]
Best innerspring crib mattress
Dream On Me Juniper 150 Ultra Coil Inner Spring Standard Crib & Toddler Bed Mattress Dream On Me Juniper 150 Ultra Coil Inner Spring Standard Crib & Toddler Bed Mattress Dream On Me Juniper 150 Ultra Coil Inner Spring Standard Crib & Toddler Bed Mattress Dream On Me Juniper 150 Ultra Coil Inner Spring Standard Crib & Toddler Bed Mattress Dream On Me Juniper 150 Ultra Coil Inner Spring Standard Crib & Toddler Bed Mattress Dream On Me Juniper 150 Ultra Coil Inner Spring Standard Crib & Toddler Bed Mattress Dream On Me Juniper 150 Ultra Coil Inner Spring Standard Crib & Toddler Bed Mattress Dream On Me Juniper 150 Ultra Coil Inner Spring Standard Crib & Toddler Bed Mattress Dream On Me Juniper 150 Ultra Coil Inner Spring Standard Crib & Toddler Bed Mattress
  • Size: 52 inches x 28 inches

  • Thickness: 6 inches

  • Warranty: 10 years

  • Support level: Firm

  • Material: Polyester

  • Greenguard certified: Yes

  • Features: Waterproof, hypoallergenic

With 150 durable steel coils at its core, this lightweight mattress offers even firmness and support and features two hypoallergenic layers for comfort. This standard-size mattress is also antibacterial and the waterproof lock-stitched binding prevents mould, mildew and odours from setting up shop. It’s Greenguard Gold certified for its low chemical emissions and made without flame retardants.

Pros
Cons
Pros
  • The reinforced outer wrap can be wiped clean with mild soap and warm water, so accidents don’t require hours of cleanup.

  • It features airflow pockets and is breathable.

  • It’s certified by the Juvenile Products Manufacturing Association (JPMA) and meets or exceeds low emissions and non-toxicity standards for multiple organizations.

Cons
  • At six inches, this mattress is on the thick side and some parents say that all crib sheets won’t fit.

  • It has a waterproof cover, which can make a crinkling noise when your babe shifts. Add a fleece under-sheet or mattress pad to prevent this issue.

The draw
It is a great mattress! The fabric is soft and the stitching is perfect. It is very light and easy to manage when changing linens. My daughter loves it! Very happy with my purchase.
-Jimmy P, originally posted on dreamonme.com
The downside
The sheets I had from my old mattress would not fit on this one, as it is so deep and firm around the edges.
-littlecart, Walmart customer
Best foam crib mattress
Safety 1st Sweet Dreams Standard Firm Baby Crib & Toddler Bed Mattress Safety 1st Sweet Dreams Standard Firm Baby Crib & Toddler Bed Mattress Safety 1st Sweet Dreams Standard Firm Baby Crib & Toddler Bed Mattress Safety 1st Sweet Dreams Standard Firm Baby Crib & Toddler Bed Mattress Safety 1st Sweet Dreams Standard Firm Baby Crib & Toddler Bed Mattress Safety 1st Sweet Dreams Standard Firm Baby Crib & Toddler Bed Mattress Safety 1st Sweet Dreams Standard Firm Baby Crib & Toddler Bed Mattress Safety 1st Sweet Dreams Standard Firm Baby Crib & Toddler Bed Mattress Safety 1st Sweet Dreams Standard Firm Baby Crib & Toddler Bed Mattress
  • Size: 52 inches x 27.5 inches

  • Thickness: 5 inches

  • Warranty: 10-year limited

  • Support level: Firm

  • Material: Polyester

  • Greenguard certified: Yes

  • Features: Waterproof

With thousands of five-star reviews, this durable Safety 1st foam crib mattress is a Walmart fave. It’s made from a thermo-bonded fibre core that has firm support for safer sleep. It also features a waterproof, stain-resistant vinyl cover that easily wipes clean in case of diaper leaks or spit-up. Add a 10-year limited warranty and this mattress is a total winner.

Pros
Cons
Pros
  • Greenguard Gold–certified, this mattress meets the standard for low chemical emissions (a.k.a. off-gassing) and is made without flame retardant chemicals.

  • At seven pounds, it’s easy to change sheets and rotate the mattress every two or three months as recommended.

  • It’s assembled in Canada.

Cons
  • It’s quite firm, as a crib mattress should be according to Health Canada[10] and the Public Health Agency of Canada,[11] but some parents say it seems extra hard.

  • It can’t withstand rough play like frequent jumping on the bed, because the vinyl cover will crack.

The draw
Perfect firmness for my ten-month-old. Cleans easy. I just wipe it with baby wipes and let it air dry between cover changes.
-Avariava, Walmart customer
The downside
It is way too firm for my liking and I almost returned it, but my son slept just fine and has been doing so since. I still bought a Sealy mattress pad for a tad more cushion.
-Andrea, Walmart customer
Best dual-sided crib mattress
Twinkle Twinkle Peaceful Sleep Baby Crib Mattress
  • Size: 51.7 inches x 27.7 inches

  • Thickness: 5 inches

  • Warranty: No

  • Support level: Firm

  • Material: Polyester

  • Greenguard certified: No

  • Features: Waterproof, hypoallergenic, dual-sided

Dual, a.k.a. double-sided, mattresses save money in the long run.  One side is extra firm for an infant, while the other side is softer for a toddler, so you can continue using it as your babe transitions from crib to bed. This resilient foam pick has enhanced airflow, is hypoallergenic and features a waterproof exterior that easily wipes clean, which is a must-have with little ones!

Pros
Cons
Pros
  • What you get for your money really can’t be beaten. Not only is this mattress ultra-affordable, but the two-sided format means it can be used for a wide age range.

  • Thanks to the standard size and thickness of this mattress, it’s easy to find sheets that will fit.

  • It’s made in Canada.

Cons
  • The waterproof cover that protects the mattress from potty accidents may be a tad noisy, but a flannel sheet or mattress pad can help.

  • There’s no warranty.

The draw
Love it! Son is taking his diaper off and having accidents. It’s the perfect bed to just wipe and clean.
-Marleel, Walmart customer
The downside
The vinyl cover makes that characteristic crackling sound when my toddler rolls on it.
-Momem, Walmart customer
Best organic crib mattress
Simmons Perfect Slumber Crib Mattress Simmons Perfect Slumber Crib Mattress Simmons Perfect Slumber Crib Mattress
  • Size: 52 inches x 28 inches

  • Thickness: 5 inches

  • Warranty: Full warranty on cover and core

  • Support level: Extra firm

  • Material: Cotton

  • Greenguard certified: No

  • Features: Hypoallergenic, dual-sided, stain-resistant

With a cover made from organic cotton—a.k.a. grown without the use of chemicals or pesticides—and a heat-bonded recycled polyester core, this mattress is a great choice for anyone looking for a breathable mattress that stays cool in the summer and cozy in the winter.

Pros
Cons
Pros
  • The Simmons Perfect Slumber Crib Mattress is dual-sided with an extra-firm side for infants up to 12 months and a slightly softer side for toddlers older than 12 months. You can use it until your child reaches 50 pounds.

  • The core of the mattress is naturally resistant to mould and mildew.

  • It’s only eight pounds, which makes for easy sheet changes.

Cons
  • Though the mattress is stain-resistant, it is not waterproof. You may prefer to add a waterproof mattress protector.

  • Some parents notice that, over time, the mattress moulds to their baby’s form and causes an indent, which can become a safety issue. Luckily, the mattress comes with a full warranty.

The draw
Our baby sleeps fine on it at two weeks old and seems comfortable. There’s is a difference between the two sides, which is nice because we usually use our crib mattresses through four years old.
-Ashley Lauren, Walmart customer
The downside
It is not waterproof, which, although might make it more breathable, is not the greatest for little kids.
-rd27, Walmart customer
Best mini crib mattress
Dream On Me 2-in-1 Breathable Two-Sided Mini Crib Mattress Dream On Me 2-in-1 Breathable Two-Sided Mini Crib Mattress Dream On Me 2-in-1 Breathable Two-Sided Mini Crib Mattress Dream On Me 2-in-1 Breathable Two-Sided Mini Crib Mattress Dream On Me 2-in-1 Breathable Two-Sided Mini Crib Mattress Dream On Me 2-in-1 Breathable Two-Sided Mini Crib Mattress Dream On Me 2-in-1 Breathable Two-Sided Mini Crib Mattress Dream On Me 2-in-1 Breathable Two-Sided Mini Crib Mattress Dream On Me 2-in-1 Breathable Two-Sided Mini Crib Mattress
  • Size: 38 inches x 24 inches

  • Thickness: 3 inches

  • Warranty: No

  • Support level: Firm

  • Material: Polyester

  • Greenguard certified: Yes

  • Features: Waterproof, hypoallergenic, dual-sided

For use with a portable or mini crib, this high-density foam mattress offers the benefits of standard-size mattress but in a smaller format. This model is dual-sided, with breathable material on the infant side and a waterproof cover and lock-stitch seams (to keep leaky, messy situations away from the mattress’s core) for toddlers.

Pros
Cons
Pros
  • At just three pounds, it’s easy to move around the house or bring for a sleepover at grandma and grandpa’s place.

  • This mattress has been laboratory tested for air and water vapour permeability, so you can be sure the airflow claims deliver.

  • It has a Greenguard Gold certification (meaning it’s been rigorously tested for toxins that might affect sensitive skin), so you know you’re investing in a healthy sleeping environment for your little one.

Cons
  • It’s specifically meant for a mini crib or play yard, so it’s small. The result? It won’t last through as many life stages as a standard crib mattress.

  • It’s three inches thick and some users say this might not be thick enough for an everyday mattress—though it does meet safety regulations.

The draw
Love this mattress. It fits perfectly in a mini crib and has no smell. It is super light and high quality
-Melissa, originally posted on dreamonme.com
The downside
I would like to have found one a bit thicker and softer but it's pretty good, especially for the price.
-Cindy, Walmart customer
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Article Sources
Katie Dupuis is an award-winning writer and editor in Toronto, and mom to two daughters (Sophie and Juliette). She is also the managing director of Chick & Owl Design Co. When she's not working, she's baking, reading or watching too much TV.
How we choose products

Simply put, we don’t recommend any products we wouldn’t buy ourselves. Our writers leverage a number of sources as a starting point, including reputable third-party reviews, Walmart.ca user reviews, and Walmart Canada’s category specialists. theHUB editorial staff has final say for all products included in this guide.

Any product claims noted are provided by the manufacturer, unless otherwise stated. Prices shown are subject to change. Please check Walmart.ca for the latest pricing. This article is intended as general information. To be sure a product is right for you, always be sure to read and follow the label(s)/instruction(s) that accompany your product(s). Walmart will not be responsible for any injury or damage caused by this activity.

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This article is intended as general information. Always be sure to read and follow the label(s)/instruction(s) that accompany your product(s). Walmart will not be responsible for any injury or damage caused by this activity.