Choose the right crib mattress size for your baby

Choose the right crib mattress size for your baby

Most of the time parents spend a lot of time choosing the perfect baby crib, Endless searches and endless nights are spent in finding that one comfortable product but the main thing that provides comfort in the crib is ignored, which is a crib mattress, and its right size. The right crib mattress size is a very important decision for parents. It affects the baby’s sleep quality and comfort, as well as the safety of their child.

Don’t know the difference between a mini crib and a full size crib? Know it here!

Type of crib mattresses

A good crib mattress size is one that fits snugly in the crib and does not interfere with the safety rails on either side of the crib. Here are some different types of crib mattresses.

Innerspring crib mattress

This type of crib mattress has coils inside of it which provide extra support for your baby’s spine. These coils also help with absorbing movement so your baby won’t feel any discomfort or pain from the springs when they move around during their sleep cycle. This style of crib mattress is more expensive than the coiled type, so if you’re looking for a cheaper option, this might not be the best option for you.

Quality innerspring mattresses are defined by their number of coils and layers. Higher coil counts provide better support, while more padding can help with pressure relief. The entire mattress is covered with a cover the pattern constrains how firm or soft the bed will feel.

Foam crib mattress

These crib mattresses are made of polyurethane foam that is non-toxic, hypoallergenic, and fire-resistant. They are also very lightweight which makes them easy to move around the house if needed. The downside is that they do not offer as much support as an innerspring mattress does. This type of mattress is perfect for those who are looking for an affordable option.

2-sided crib mattress

A 2-sided crib mattress has a unique design, one side of the mattress is firmer and the other side is softer. The idea behind this design is to provide comfortable sleep for both babies and parents.

The firm side of the mattress provides support while the soft side provides comfort. This design also makes it easier to change positions during sleep without disturbing your baby.

Different types of cribs

Make sure to decide on cribs mattress size according to the type of crib you have gotten for your baby. To make the process easier for you here are the types of cribs.

  • Convertible cribs.
  • Convertible cribs with tables.
  • Cribs with drawer.
  • Portable crib
  • Pack N play crib
  • Travel crib.

Standard crib mattress size

Generally, the CPSC recommends that a crib mattress be no more than 6″. The standard crib mattress size is 28 x 52 inches. The width of the mattress is 28 inches and the length is 52 inches. The best crib mattress size for your baby is the one that fits their crib if you have a smaller or larger baby, you might need to buy a different size.

Tips to select the perfect mattress size for baby

Choosing the perfect mattress size for your baby is not an easy task. It requires a lot of research and consideration. A wrong decision can cost you a lot of money and time. Especially portable cribs need to have the right size mattress so you can easily travel.

It is important to know the recommended size for your baby before making a purchase. Here are some tips to help you find the perfect size:

  • Check your child’s weight, height, and age before buying a mattress
  • Consider the bedding that will be used with the mattress
  • Find out what kind of sleeper your child is (light or heavy)
  • Decide on how much space you want between the mattress and headboard or wall.4
  • Take in check the standard size of your crib. Sometimes the crib is smaller or larger than the standard size and has to be fitted with a mattress of the same size.

Some of the best crib mattresses available online

Delta Children Serta SleepTrue Mini Crib Mattress

The comfortable and safe choice for your baby, non-toxic mattress best for mini and portable cribs.


Product Details

Size38x24x4 Inch (Pack of 1)
Item Firmness DescriptionFirm
Fill MaterialMemory Foam
BrandDelta Children
Product Dimensions38″L x 24″W x 4″
Top StyleTight Top
  • Fits most mini & portable cribs.
  • Features a premium sustainably sourced firm fiber core.
  • Construction is free from harmful materials/chemicals.
  • Waterproof vinyl cover that wipes clean and is hypoallergenic
  • Greenguard Gold Certified.
  • 10-Year Warranty.
  • The mattress can feel hard to some babies.
  • The cover might be detached from the mattress and irritate the baby.

Final verdict

Delta Children’s Serta SleepTrue Mini Crib Mattress gives the advantages of a full-sized crib mattress in a downsized size.

Check out crib sheets for the mattresses here!

Graco premium foam crib & toddler mattress

Graco Premium Foam crib and toddler Bed mattress been master tried by autonomous research facilities to promise it satisfies the most elevated guidelines for your youngster’s wellbeing.


Product detail

Size52x27x5 Inch (Pack of 1)
Item Firmness DescriptionFirm
Fill MaterialHigh Density Foam
Product Dimensions52″L x 27.62″W x 5″Th
Top StyleFoam
Age Range (Description)Baby
Model NameGraco Premium Foam Crib & Toddler Mattress
  • Chemical free.
  • Polyurethane foams on CertiPUR-US program standards.
  • Easily machine washable.
  • Fits the standard of the full-size crib and toddler bed.
  • Outer-cover care is hand washable.
  • Can be a little bigger than a standard-size.

Final verdict

 Graco Premium Foam Crib & Toddler Bed Mattress is the best choice for your baby’s peaceful and safe sleep.

Dream on Me baby Zzz 5” foam crib & toddler bed mattress 

Dream On Me Baby Zzz 5” Foam Crib & Toddler Bed Mattress is a quality product with, fireproof fiber and fits a full size crib.


Product details

item Firmness DescriptionFirm
BrandDream On Me
Product Dimensions52″L x 28″W x 5″Th
Top StylePlush Top
ColorWhiteBreathable plush foam
  • Machine washable
  • Comes in the recommended firmness for infants.
  • Greenguard Gold Certified and JPMA-certified.
  • 7- Year Warranty.
  • Thickness is less

Final verdict

Dream On Me Baby Zzz 5 is a firm froth dozing surface for your child that supports their developing body with care and wellbeing.

Dream on me holly 3” fiber portable crib mattress

Dream on me Holly 3” baby mattress fits most mini cribs and portable cribs and gives your baby a firm place to snooze on.


Product details

Special FeatureStain Resistant, Water Resistant
Item Firmness DescriptionExtra Firm
Fill MaterialGel Memory Foam
BrandDream On Me
Product Dimensions38″L x 24″W x 3″Th
Top StylePlush Top
  • Extra support with The inner core is constructed with extra firm Eco-fiber for extra support.
  • Green Guard Gold Certified.Easily wipes clean with warm water and a mild soap
  • Easily wipes clean with warm water and a mild soap.
  • The mattress weighs only 2.5lbs so its easily portable.
  • 10 Limited Warranty.
  • Mattress can be less thick.

Final verdict:

As parents are searching for more space-saving, scaled-down, and compact furniture, Dream on me Holly 3” mattress is great for condos/more modest homes and fits most smaller than usual and convenient cribs.


There are many different sizes available for purchase, and it should be noted that not all mattresses are created equal when it comes to thickness, quality, or price this article is a detail guide for you to make the best purchase for your baby’s nursery.


Why do babies need a firm mattress?

A firm mattress is important for babies because it provides them with the support they need. Babies are not able to move their bodies on their own and they cannot control how much pressure they exert when they lie on a mattress, so a firm mattress will provide them with the support that they need.

Is a crib mattress the same size as a toddler bed?

A crib mattress is a standard size for a crib, so it’s not the same size as a toddler bed. The height of the mattress is about 16 inches from the ground, and it will be about 2 inches narrower than a toddler bed. 

Do all cribs have the same size mattress?

 No, crib mattresses and crib sheets are available in different sizes and shapes(oval and square). Standard cribs and mini cribs are commonly available. 

Rachel Zack
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