Mattresses Key Terms

Learn about the sizes and types of mattresses

By Terri Deno

Mattresses come in a variety of sizes and comfort levels. The comfort level is best determined by the type of material a mattress is made of. Mattresses can be constructed from memory foam, innerspring coils, latex or other specialty types. Another factor in the comfort level of a mattress is whether a box spring is used. Since mattresses can last 10 years or more with proper care, choosing the right mattress to meet specific needs is important.

Mattress size

The mattress size is important for fitting a mattress into a specific space and bed frame as well as finding the right mattress for a tall person. There are five standard sizes: twin, full, queen, king and California king.
Try: The Better Sleep Council provides advice on choosing the best mattress size and provides the standard dimensions.

Coil spring mattress

Coil spring mattresses provide a source of support with coiled springs inside two layers of comfortable material. These layers can be made from wool, latex, foam or cotton.
Try: The Best Bed Guide provides an overview of all the types of mattresses available.

Coil count

The coil count of a mattress refers to the number of coils located in the innerspring unity. Counts are based on the number of coils inside a full-size mattress.
Try: All About Home provides tips for buying a new mattress including considerations for the coil count to help determine the quality of a mattress.

Adjustable mattress

An adjustable mattress is a mattress specifically made for adjustable bed frames. Adjustable beds are provide additional health benefits for those suffering from arthritis, sleep apnea and other ailments.
Try: Absolute Comfort provides answers to frequently asked questions about the comfort and use of adjustable beds.

Memory foam

Memory foam is a material made from elastic urethane materials. This material used in a mattress helps to eliminate pressure points when sleeping.
Try: Advanced provides a description of memory foam. My Foam Mattress provides a comparison of coil spring mattresses and memory foam beds.

Pillow top mattress

A pillow top mattress is considered one of the softest types of mattresses on the market. Pillow top mattresses offer an additional feather-type padding sewn onto the top of the mattress.
Try: Mattress Direct Online provides information on the different levels of softness for mattress types.