Mattress toppers have become very popular and cost a fraction of a full replacement mattress. There are many different types of mattress toppers. Foam Mattress toppers are the most popular. There are two main types Memory foam and (PU) polyurethane foam. Other names for toppers are Foam topper, Latex mattress topper, Mattress pad, and Latex mattress toppers. Some toppers incorporate coolmax and outlast fabrics and will have a zip of removable cover that is machine washable. Mattress toppers are simply placed on top of your existing mattress to make it feel more comfortable and provide additional support. Most people tend to choose a mattress topper so they don't have the expense of a new mattress. They act as a great short term solution to adjusting an uncomfortable and old mattress by providing additional cushioning.