The LUCID 4-Inch Down-Alternative and Gel Memory Foam Mattress Topper is an affordable and effective way to increase your comfort without breaking the bank. This topper combines the best features of hypoallergenic down-alternative and contouring premium memory foam to create an all-around comfortable topper perfect for side, back, and stomach sleepers. The down-alternative fiberbed and the gel memory foam topper work together to create a lavish sleep surface that is sure to refresh your current mattress with cooling comfort. Customize your sleep setup by choosing to use the down-alternative topper or gel memory foam on their own for three unique sleep experiences.