Swiss Ortho Sleep&reg;, 2" and 4" Inch High-Density GEL MEMORY FOAM MATTRESS TOPPER, All Sizes A Phenomenal High-Quality 2" and 4" Inch Multi Layered Memory Foam Mattress topper. This Swiss Ortho Sleep topper is Temperature Sensitive, Body Forming Super High-Density Mattress with The Best Slow Recovery High Density Foam for an Excellent Night's Sleep, The Memory Gel Provides a Cooling Sensation for Extra Comfort During Hot Summer Nights, Swiss Ortho Sleep Always Comes with a 10 Year Warranty, It is Delivered to you in an Easy and Convenient Compressed Packing.