The 8 Best Crib Mattresses of 2021

Help your little one sleep comfortably

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There is often so much emphasis put on finding the perfect crib for a baby that it’s easy to overlook the fact that you need a quality mattress to put inside of it. Picking out a mattress for your baby is just as important, though, and you want to ensure that you’re choosing one that will keep your baby safe. You’ll need a crib mattress that is firm (but still comfortable), won’t cause the baby to overheat, and can hold up to all of the spit-up and accidents the baby will inevitably put it through.

Here are some of the best ones to choose from.  

Our Top Picks
Made with the company’s Breathe-Thru technology, it helps air circulate through the mattress to help reduce risk of suffocation.
Made from polyester fibers, it provides firm support for safe sleep, and a waterproof vinyl outer cover makes sure it stays clean.
Lightweight and extremely comfortable for little ones, these mattresses are 100 percent organic.
The dual-sided mattress is a cinch to clean as you can simply wipe off the hypoallergenic cover with a damp sponge.
It’s dual-sided with a firmer, sturdy side for infants and a plusher, super comfy side for toddler years.
Kids sleep great on it, and it fits most mini cribs perfectly so your baby can snooze safely all night long.
The coil-filled mattress can be used in standard cribs and toddler beds and has two sides—one for infants and one for toddlers.
Made by hand with cotton-wrapped coils and certified wool, children can sleep comfortably for years on this dual-sided mattress.

Best Overall: Newton Baby Crib Mattress and Toddler Bed

Newton Baby Crib Mattress and Toddler Bed
What We Like
  • Combined Toddler-Infant Design

  • Greenguard Gold Certified

  • Breathable Materials

What We Don't Like
  • Not Waterproof

  • Can Have a Slight Smell Upon Unpackaging

This crib mattress from Newton tops our list as it checks all the boxes for safety, comfort, and durability. Made with the company’s Breathe-Thru technology, it helps air circulate through the mattress, both to prevent the risk of suffocation and to help regulate the temperature and keep baby as comfortable as possible. It doesn’t contain any metal springs, polyurethane foam or, glue, but rather it’s made up of 90 percent air. It’s non-toxic, hypoallergenic, and the fabric cover comes off for easy washing (extra covers are available for purchase separately).

Customers give this award-winning mattress the highest marks, saying they sleep much easier knowing just how safe this mattress is for their babies. While a bit on the expensive side, most customers say it’s worth every penny.

Dimensions: 52 x 28 x 5.5 inches | Waterproof: No | Hypoallergenic: Yes | Removable Cover Included: Yes

Best Budget: Safety 1st Crib & Toddler Mattress

Safety 1st Crib & Toddler Mattress
What We Like
  • Greenguard Gold Certified

  • Firm Support

What We Don't Like
  • Mattress Cover Not Removable

  • Can Be Slightly Noisy Due to Waterproof Cover

Sure, you want the best for your little one, but that doesn’t always have to mean the most expensive. This crib mattress from Safety 1st is on the low end when it comes to price, but customers give it high marks overall. Made from polyester fibers, it provides firm support for safe sleep, and a waterproof vinyl outer cover makes sure it stays clean. It fits most standard cribs and toddler beds and for a pop of color, it comes in light pink and light blue in addition to basic white. 

Dimensions: 52 x 27.5 x 5 inches | Waterproof: Yes | Hypoallergenic: Not Listed | Removable Cover Included: No

Best Organic: Naturepedic Organic Crib Natural Mattress

Naturepedic No Compromise Organic Cotton Classic Crib Mattress
What We Like
  • 100 Percent GOTS Certified

  • Greenguard Certified

  • Lightweight Design

What We Don't Like
  • Extra Firm (Could Be Uncomfortable)

  • Can Sink Over Time

If you’re set on an organic option, try the No Compromise organic crib mattress from Naturepedic. It measures 28 x 52 x 6 inches, and the surface wipes clean. While some crib mattresses have organic covers but are filled with non-organic materials, this one is 100 percent organic. Made in the United States, these mattresses are independently tested to ensure there are no chemical emissions. Customers like that it’s lightweight and say it’s extremely comfortable for their little ones.

Dimensions: 27 1/4 x 51 5/8 x 6 inches | Waterproof: Yes | Hypoallergenic: Not Listed | Removable Cover Included: No

Best Waterproof: Moonlight Slumber Little Dreamer Deluxe Twin Mattress

Moonlight Slumber Little Dreamer Deluxe Twin Mattress
What We Like
  • Stain and Odor Resistant

  • Dust Mite and Bed Bug Resistant

  • Combination Infant-Toddler Mattress

What We Don't Like
  • Toddler/Infant Sides Aren't Clearly Marked

As adorable as they are, babies can be messy, so a waterproof crib mattress, like this one from Moonlight Slumber, is a must for many parents. Any messes simply wipe off the hypoallergenic cover with a damp sponge. This one is designed to grow with your baby too, as one side is firm for when they’re small, and the other is plusher for the toddler years. It measures 52 x 27.5 x 5 inches.

Dimensions: 27.5 x 5 x 52 inches | Waterproof: Yes | Hypoallergenic: Yes | Removable Cover Included: No

Best with Removable Cover: babyletto Pure Core Standard Hybrid Mattress

babyletto Pure Core Standard Hybrid Mattress
What We Like
  • Combination Infant-Toddler Mattress

  • Greenguard Gold Certified

What We Don't Like
  • Cover Can Shrink in Dryer

  • Waterproof Materials Make Noise When Baby Moves Around

This mattress gets high marks all around, but one thing that makes it stand out is the fact that you can remove its cover and throw it in the washing machine for a fresh, clean sleeping experience anytime. It’s made of soft cotton on the top and has a waterproof backing to keep the mattress dry.

It’s also dual-sided with a firmer side for infants and a plusher one to use as you head into the toddler years. It’s free of polyurethane foam, phthalates, flame retardants and other potentially dangerous materials, and the core is made of recyclable polyester.

Dimensions: 52.5 x 28.38 x 6 inches | Waterproof: Yes | Hypoallergenic: Yes | Removable Cover Included: Yes

Best Mini: Dream On Me Portable Mattress

Dream On Me Portable Mattress
What We Like
  • Greenguard Gold Certified

  • Antibacterial Cover

  • Stain and Odor Resistant

What We Don't Like
  • Firm, but Not Very Thick

No matter what size your crib, you want a mattress that’s as safe and comfortable as possible, and this one from Dream on Me is the perfect pick for mini cribs, according to hundreds of online customers. It’s phthalate and lead-free, and the cover is waterproof, so you can wipe any accidents up easily. It fits cribs measuring 24 x 28 inches, and it’s 3 inches thick.

Dimensions: 38 x 24 x 3 inches | Waterproof: Yes | Hypoallergenic: Yes | Removable Cover Included: No

Best Dual-Sided: Sealy Cotton Cozy Rest 2-Stage Infant & Toddler Crib Mattress

Sealy Cotton Cozy Rest 2-Stage Infant & Toddler Crib Mattress
What We Like
  • Combination Infant-Toddler Mattress

  • Won't Sag in the Middle

  • Stain Resistant

What We Don't Like
  • Spring Coils Can Make Noise Over Time

It may be hard to believe that your tiny baby will grow into a walking, talking little person, but in a blink of an eye, they’ll be heading right into the toddler zone. Having a mattress that can grow with them through the years, like this one from Sealy, can be a great way to save time and money.

The coil-filled mattress can be used in standard cribs and toddler beds and it has two sides—a firmer one for infants and a softer one for toddlers. The coils make it extra firm, while a PVC-free cotton cover makes it comfortable.

Dimensions: 27.25 x 5.5 x 51.63 inches | Waterproof: Yes | Hypoallergenic: Yes | Removable Cover Included: No

Best Luxury: Avocado Luxury Organic Crib Mattress

Avocado Organic Baby Crib Mattress
What We Like
  • GOTS Certified Organic Cotton

  • Combination Infant-Toddler Mattress

  • All Materials Are Organic and High-Quality

What We Don't Like
  • Costly

  • Not Waterproof

Say hello to luxury with this dual-sided, organic mattress designed for children from the newborn stage to four years old. The infant side can be used for babies immediately after birth and up to one year, while the toddler side is safe from age one to four.

The mattress is handmade with cotton-wrapped foils, certified wool, organic latex, and more premium pieces. It can be paired with the company’s organic waterproof crib mattress protector to help guard from any accidents bound to happen.

Dimensions: 28 x 52 x 6 inches | Waterproof: No | Hypoallergenic: Not Listed | Removable Cover Included: No

You really can’t go wrong with any of these mattresses, but the Newton Baby Crib Mattress and Toddler Bed (view at Amazon) ranks highest on our list because it’s designed to regulate baby’s body temperature, is hypoallergenic, and mindfully designed for both safety and comfort. 

What to Look for When Buying a Crib Mattress

Safety

“Safety is of the utmost importance, of course,” says Aubrie DeBear, Psy.D., Child Sleep Consultant and Expert for Tommee Tippee’s ‘Spill The Milk Series. Dr. DeBear recommends parents look for “a firm mattress with proper airflow” to ensure the mattress meets the safe sleep guidelines by the American Academy of Pediatrics (AAP).

Additionally, Dr. DeBear notes that the mattress “should fit the crib exactly without gaps or spaces” once it’s put into place, so make sure to take proper measurements of your baby’s crib before going to purchase the mattress. 

Materials

Everyone has their own preferences when it comes to the types of materials they want their child exposed to. However, when it comes to mattresses, the most important thing is to purchase one that is made with durable materials that are non-toxic.

“Buying a fully organic mattress is not necessarily essential,” Dr. DeBear says, and “checking for a 'greenguard certification’ is a great way to ensure the mattress is free of toxic emissions.” Another thing to keep in mind is whether or not the mattress’s materials are hypoallergenic, because babies often have more sensitive skin and are more affected by allergens. 

Design

As long as your crib mattress is firm and follows the AAP’s safe sleep guidelines, that is the most important design aspect to look for. Beyond that, though, you may want to consider some extras like whether or not it’s waterproof or if it’s designed for toddler use as well. “There are many mattresses on the market that come with two sides, one which is more firm for infants and one which is slightly softer for toddlers,” explains Dr. DeBear, “this can help you get more bang for your buck, especially if you're spending more on an organic mattress".

FAQs

Are all crib mattresses the same?

Different brands of crib mattresses can be made of a variety of materials or have slightly different designs from one another. However, the United States Consumer Product Safety Commission states, “to prevent head entrapment and suffocation between the mattress and crib sides, a mattress used in a full-size crib must be at least 27 1/4 inches x 51 1/4 inches, with a thickness not exceeding 6 inches" so most (if not all) mattresses sold in the US adhere to these standards.

Do toddlers use crib mattresses?

There is no reason a toddler can’t continue to use their crib mattress up until they move into a full-size bed. “I usually advise parents to keep their children in the crib for as long as possible, especially if their child has no problem staying in there,” says Dr. DeBear. Toddler-size beds are typically sized to hold crib-size mattresses and it’s perfectly safe to simply move the mattress from the crib to the bed.

In fact, Dr. DeBear points out that if you have a crib that converts into a toddler bed and you already know the mattress you have fits, so there’s no reason not to keep using it. 

Why Trust Verywell Family

Ashley Ziegler is a staff and freelance writer who covers lifestyle, home, parenting, and commerce content for a variety of platforms. She’s a mom to 1-year-old and 3-year-old daughters, and an aunt to three nieces and two nephews ranging from 5 to 10 years old. In addition to regularly scouring the internet to find the best things for herself, Ashley spends multiple hours a week researching, comparing, and writing about products specifically for kids and families.

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2 Sources
Verywell Family uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Safe sleep recommendations. AAP.org.

  2. Full-size baby cribs business guidance & small entity compliance guide. CPSC.gov.