A platform bed is designed to be used with a mattress that includes its own specific foundation. A box spring is a wooden frame containing springs that lies underneath the mattress for support.
A box spring will raise the height of the bed, and reduce wear to the mattress and absorb shock. Platform beds eliminate the need for box springs, and provide cushioning and support.
Box springs can be expensive, so choosing a platform bed is a cheaper option. By eliminating the box spring, platform beds will also result in more storage space under the bed.
Sleeping comfort is based on personal preferences, and while platform bedding is becoming more popular, some prefer the feel of a box spring.
The average price of a box spring unit that complements a quality mattress is approximately $300 as of October 2009.