Best Crib Mattress: What You Should Look Out For

(Last Updated On: April 3, 2017)

While some bassinets include mattresses, many parents have to search around for a mattress for their crib. The best crib mattress should be one that helps your little one sleep through the night while providing them with a safe, sound slumber. It may feel like a challenge to find the right one, but I’ve collated some of the top picks here.

Also Read: What are the most popular bassinets today?

Types of Crib Mattresses

When you’re looking for crib mattresses, there are three main types that you need to consider: foam, innerspring, and organic.

Also Read: If you’ve got twins, here are the cribs to get!


Foam mattresses are quite popular, partially because of their price, and partially because of how comfortable they are. They come in a variety of different depths, usually between 3 to 6 inches. They’re the lightest too, meaning that it’s easy to clean and even easier to change the sheets. Typically, they weigh 7 to 11 pounds. Imagine how many times you’ll be lifting it up to clean; it’s great that it’s lightweight!


The innerspring type is generally more expensive than foam, but provides more firm support due to the springs. This means that it’s great for orthopedic support and safety. Most of us as parents have innersprings, so it’s an easy choice to pick one for baby. These baby mattresses will have 50 to 200 coils, allowing you to measure support by the amount of coils and thickness of the springs. Lower gauges mean firmer support, so look for 150 coils with a gauge of 15.5 or lower.


The organic mattresses do cost more than any other mattress, but you might find the price is worth it. They’re made from 100% organic material like cotton, eliminating any worry about harmful chemicals or allergens that may be present in foam or innerspring mattresses. When you think about how often your baby will be lying on this mattress, you’ll want to think of the possible long term hazards.

Some Points To Consider:

We look for support and comfort as adults, but we need to consider safety as a priority when we’re buying a mattress for our children. Safety and other factors are crucial when it comes to your mattress pick.

Mattress and Crib Size

How big your mattress is depends on the dimensions of the actual crib. Interior crib dimensions must be slightly larger than the size of the mattress. This is very important because the gap between the mattress and crib sides can pose a risk of suffocation. There shouldn’t be a gap greater than 1.25” between the edge of the mattress and the frame. In terms of depth, the mattress can’t be more than 6” from top to bottom. Luckily, you can use the same mattress for a toddler mattress later on, so whatever you buy will be worth it.


Use a firm, flat surface to reduce the risk of SIDS. If it’s too soft, there can be depressions that increase risk of suffocation. Any mattress should snap back readily when pressed into rather than conforming.

Compliance Standards

Any mattress must comply with federal flammability standards. Foam mattresses have to be CertiPUR-US certified so you know the foam inside meets content, emissions, and durability standards. You may also look for a GREENGUARD certification so you know it’s met strict chemical emission limits. Organic mattresses will generally be certified by the GOTS, or OTCO in the US.


Price, as always, is important, and depends on the quality and type of mattress you choose to buy. Cheap, thinner foam mattresses are of course less expensive than the innersprings or organic versions. It depends on what other factors you’re considering.

7 Best Crib Mattresses Currently On The Market


Colgate 2-N-1 Innerspring Crib and Toddler Mattress with Waterproof Cover

Colgate fits all standard crib sizes, with a dual firmness design so that the mattress grows as the child does. The innersprings give firm support at a 13.5 gauge, so you can be sure your child stays rested.

Why It’s So Popular:
– Can be used for both infants and toddlers
– Kids sleep through the night without issue
– Holds up very well even after 15 months of use

Check price and more details here

Keep In Mind:
– It feels a little harder when compared to some other mattresses

Sealy Baby Firm Rest Crib Mattress

This waterproof covered mattress allows you to wipe away liquids and stains with ease. You’ll get superior firmness with 204 coils and GREENGUARD certification.

Why It’s So Popular:
– Firm, fits most cribs, easy to clean and move
– Has more than the recommended coils to provide more support
– Very firm; perfect for babies

Check price and more details here

Keep In Mind:
– The liquid proof cover is somewhat thin
– It’s not very durable over time

Sealy Baby Posturepedic Crib Mattress

This Sealy is also waterproof, but includes 220 coils for great orthopedic posture support and comfort. Just like other Sealy mattresses, it’s GREENGUARD certified.

Why It’s So Popular:
– You can switch the mattress around to deal with indentations
– The waterproof material is great
– May be a good option for the price

Check price and more details here

Keep In Mind:
– The waterproof material can make the sheets slide off

My First Premium Memory Foam Baby Crib Mattress

My First Premium is constructed with CertiPUR-US foam. The mattress cover is removable, washable, and waterproof, while the mattress itself is mite-proof, anti-microbial, and lead free.

Why It’s So Popular:
– The waterproof cover is extremely soft
– The new version is ½ inch thicker to fit better
– Very lightweight and easy to clean

Check price and more details here

Keep In Mind:
– Seems to be a little thinner than some would like
– The zippers around it only appear to zip halfway

Kolcraft Pure Sleep Therapeutic 150 Crib Mattress

150 steel coils in the Kolcraft support your baby as they grow. The waterproof cover will resist stains, moisture, and mildew for easy wiping. It meets or exceeds all standards, and is GREENGUARD certified as well.

Why It’s So Popular:
– Sizing is dead on
– It’s fairly thick for a baby mattress
– It’s waterproof, so you don’t need an extra cover

Check price and more details here

Keep In Mind:
– Seems a little too soft
– Some parents say it can sag quickly

Moonlight Slumber Little Dreamer Dual Firmness Crib Mattress

Moonlight Slumber has extra high density foam for great support, with side-stitched seams and its CertiPUR certification. It’s easily cleaned too since it’s waterproof and hypoallergenic.

Why It’s So Popular:
– Made of top quality, eco friendly materials
– Made of medical grade foam
– The dual side densities are perfect and the mattress is side stitched

Check price and more details here

Keep In Mind:
– It is a little pricey
– Customer service hasn’t been the best

Safety 1st Heavenly Dreams White Crib Mattress

Safety 1st is hypoallergenic and lightweight, not to mention durable, so you can use it for years to come. The vinyl cover washes easily while the high density foam provides firm support.

Why It’s So Popular:
– Very durable and easy to clean
– Works perfectly as your baby ages
– Retains shape and form beautifully

Check price and more details here

Keep In Mind:
–  Some moms say it’s a little too soft


New mothers have so much to think about, but you don’t need even more on your list. Take a breath and start looking for the best crib mattresses, starting from the ones listed here.

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