Make your friends and family green with envy over my Envy mattress. Featuring a hand-tufted Tencel knit cover with premium hybrid comfort blending lush layers of silk and wool, gel-infused memory foam, and 2,000 micro coils—you'll sleep better than you ever dreamed possible. The natural silk and wool fibers provide temperature regulation while the foam-encased individually wrapped coils and Bob-O-Pedic Memory Foam create pressure relief and motion isolation.