Sleep in comfort on this Cool Memory Foam mattress topper If you live in a warmer climate or prefer a cooler sleeping temperature then this Cool Memory Foam mattress topper is for you Topper features premium three inch thickness and 4 pound density Different from other Memory Foam products Includes all the usual features of a premium Memory Foam Topper with the added enhancement of increased air flow Air flow is accomplished using a patented process that opens-up the foam cells for both enhanced air flow and quicker head transmission and dissipation Foam has a 99 open cell configuration for maximum heat dissipation Cells are naturally opened using a patented foam making process Cooler than traditional Memory Foam 10 times the air flow of other Memory Foam 50-percent greater air flow than any other cool Memory Foam Hypo-allergenic Dimensions: Full: 51 inches wide x 72 inches long x 3 inches thick Queen: 58 inches wide x 77 inches long x 3 inches thick King: 76 inches wide x 77 inches long x 3 inches thick Cal King: 70 inches wide x 80 inches long x 3 inches thick Made in the USAMemory foam products are packed tightly during shipping. Upon receipt, remove them from their packaging and allow several hours to recover their full shape. In addition, being sealed in plastic packaging sometimes causes an odor. A few hours of airing usually removes the odor.