Shopping Secrets: 14 Important Features to Look For When Buying Crib Mattress

Once you have read the honest baby mattress reviews and decided the type that will suit your baby, but do you know what are the features that you need to look for when buying a crib mattress?

​It is important to buy a crib mattress that is not only comfortable and safe for your baby, but also convenient for you as you are the person who will handle the mattress.

Below are some important factors that you should watch out or consider while making a choice.

​Read our Shopping Secrets and select the best crib mattress for your precious baby.

14 Important Features that You Should Take Into Consideration Before Buying A Crib Mattress​


Foam, Innerspring or Organic- whichever type of mattress you choose, quality is a big issue. As only a good quality mattress can give excellent support for your baby keeping hiw/ her shape well. Cheaper coil spring and foam mattresses may be of poor quality. These mattresses usually use thin vinyl covering and edging that is not durable at all. The thin covering and edging can dry out over time, crack and tear. More expensive mattresses feature good quality and thicker coverings that are double or triple laminates and puncture-resistant. In case of innerspring mattresses, the number of layers and quality of the covering increase the comfort level while adding to the price.

Mattress Size

It is important that the crib mattress that you buy should fit snugly in your crib without leaving any gap between the mattress and the crib frame. If there is a gap, this may create a serious risk of suffocation and a sudden infant death syndrome (SIDS) hazard. Although the dimension of the crib mattress depends on the interior dimension of the crib, the Federal Government regulates the standard size of the crib and crib mattress. As per this law, the least mattress size is 27 ¼ inch widths and 51 5/8 inch length and the thickness should not exceed 6 inches from top to bottom. The gap between the mattress and the crib frame should not be more than 1.25 inches.


Firmness is one of the important factors that you should take into account while buying a crib mattress. Parents make mistake choosing the mattress that they feel comfortable for them. The Firmer crib mattress is better for your baby’s health. It’s advisable that you should avoid the soft mattress and pick the one that feels stiff to them. A firm sleep surface also prevents the risk of SIDS and other sleep-related hazards to your baby. You can instantly check the firmness of the mattress simply by pressing your hand together in the center and the edge of the mattress. If your hands spring right up, the mattress is just right for your baby.


The CPSC recommends using a high-density mattress for your child. A high-density mattress is firm enough to prevent the prone to causing your baby to sink into it and thus keep your baby safe while sleeping. Unfortunately, most brands don’t mention the density in the packing information label. But, it’s easy to find the information online. However, for foam mattress, to compare the density, weight can be a good indicator. You can also find the density of a mattress by “Squeezing Test”: just squeeze the sides of the mattress and see how much does it squeeze. Denser mattress doesn’t allow you to push it very far. In case of Innerspring mattresses, the gauge of the wire also indicates density. The lower the gauge, the thicker the wire. The thicker wire is firmer. The standard number of coils is 135 or more, and a gauge of 15.5 or lower.


The best foam mattresses are resilient. You can test the resiliency of the mattress yourself. Push your hand down at the center of the mattress and then remove your hand. See how quickly the foam retains its shape. The faster it regains its shape, the better is the mattress. If the mattress conforms to the shape of your baby, it will be difficult for them to change his/her shape while sleeping.


Mattress weight is another important point to consider. Keep in mind that you need to lift a side of the crib sheet or the whole thing to replace and properly fit the sheets. If the mattress is bulky, it would be a difficult task for you, especially for parents with a wrist injury. A foam mattress usually weighs from 7 to 8 pounds, while an Iinnerspring mattress weighs about 15 to 25 pounds.

Flame Retardant

Under U.S Law, all crib mattress should meet the Federal flammability standards. It ensures that if fire comes into contact with the mattress, it won’t burn to the ground in minutes.


Is the crib mattress you choose for your baby Hypoallergenic and free from toxic chemicals? Your baby will spend a lot of time on the mattress. So, it is very important to be sure whether the mattress is made of safe materials. See whether the mattress meets the GREENGUARD certification, that verifies the chemical emission from the mattress. If your baby is diagnosed with allergies or asthma, a hypoallergenic mattress will be a safe choice. Also, remember that some manufacturers uses toxic chemicals to reduce flammability of the mattress. Choose the crib mattress that is free from toxic fire retardants otherwise your developing child may face a negative impact on his health.

Mattress Cover

A tight-fitting, machine washable and waterproof mattress cover will protect the mattress and keep as clean and sanitary as possible.

Well Ventilated

It is important that your baby’s crib mattress should be well ventilated so that air can circulate through the mattress easily. Well air circulation prevents odor, mildew and mold from growing up inside the mattress.


Be sure that your baby’s crib mattress meets all the safety standards defined by the Americans Society for testing and Materials and U.S CPSC. Oeko-Tex Standard 100 certified (a worldwide uniform certification) means that the mattress is free of certain flame retardants and heavy toxic metals.


Certainly, choosing a good crib mattress for your baby, which before reading our shopping secret was a boring task, is now an exciting job to you.

If you’re going to buy a crib mattress, just keep in mind the above factors.

You won’t regret for your buying.

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