Standard Crib Mattress Size

When it comes to your baby, you want everything to be just about perfect, including his or her crib mattress. Babies spend a major amount of their time in the crib and it is absolutely essential that they feel comfortable inside. Choosing the right standard mattress size and type is therefore an important decision.

The crib along with the mattress are parts of the comfort zone for your baby, and I am sure that you want him to be happy when in there. To make that little part of the world, that is going to be his bed and his playing space comfortable, you need the right combination of a crib, that is built with safety considerations in the mind, and a crib mattress, which fits in right, creating a cozy cocoon for your baby.

Nowadays, what needs to be taken into consideration while buying items like baby mattresses and cribs are the principles of ergonomics. It is the science of designing of products, taking biological factors into consideration. Modern manufacturers of mattresses are increasingly taking ergonomics into consideration, while designing them. See to it that the product you purchase has been optimized ergonomically.

Manufacturers have to adhere to standard safety precautions while designing cribs and see to it that the distance between slats, the overall dimensions are built according to specifications. This makes sure that the safety hazards posed by past designs are circumvented. The standard size is designed taking the dimensions of a crib into consideration. Most crib manufacturers advertise that their cribs are built to fit the standard specifications.

Standard Size Dimensions
The standard mattress size for cribs is defined to be the following. They are 51.625" long and 27.25" wide. Although the size may vary a bit, the length or width doesn't change much. There is no exact specification about the depth a crib mattress can have. However, there is an upper limit on the depth which is 6" maximum. Its thickness should not exceed 6" in general. There are two main types of crib mattress according to the material from which they are built. They are foam and coil mattresses. Foam based ones have a thickness in the range of 4 to 6 inches, while coil mattresses have a thickness range of 5 to 6 inch in general.

So the numbers you need to keep in mind, to remember the standard size is 51.625" x 27.25". While selecting the mattress, buy the crib before, so that you have an idea about what will be the right fit. To test whether the mattress is right for your crib, lay in the mattress inside and see how much space remains between the crib, rails and the mattress. If the space is greater than the width of two fingers, then the size is too small. If you can't test directly in a crib, make sure that you have its measurements with you. Then measure the mattress dimensions to get an idea about whether it's a right fit.

The standard size is such that it can serve as a baby bed and later also serve as a toddler bed as he/she grows up, so you don't need to buy a new one that soon.