The Five Sided™ Omniphase™ mattress protector is the most advanced mattress protector on the market with three incorporated technologies—Tencel® Lyocell, Omniphase®, and the H2Pro® membrane. Omniphase® phase change material promotes a comfortable sleeping temperature in any climate; Tencel® Lyocell fiber wicks away moisture from the body and the laboratory-certified H2Pro® liquid-proof membrane creates a quiet, and breathable barrier against allergens and dust mites. The combined benefits of these technologies means you will sleep comfortably and dry with five sides of protection for your mattress. Pillow protectors are also available to create a healthy sleeping environment. Five Sided - Omniphase Mattress Protector - California King10.0in L, 10.0in W, 5.25in H, and 3.88 lb Five Sided - Omniphase Mattress Protector - Full10.0in L, 10.0in W, 4.25in H, and 3.13 lb Five Sided - Omniphase Mattress Protector - King10.0in L, 10.0in W, 5.25in H, and 3.5 lb Five Sided - Omniphase Mattress Protector - Queen10.0in L, 10.0in W, 5.0in H, and 3.38 lb Five Sided - Omniphase Mattress Protector - Split California King10.0in L, 10.0in W, 5.5in H, and 4.25 lb Five Sided - Omniphase Mattress Protector - Split King10.0in L, 10.0in W, 5.5in H, and 4.38 lb Five Sided - Omniphase Mattress Protector - Split Queen10.0in L, 10.0in W, 5.5in H, and 3.5 lb Five Sided - Omniphase Mattress Protector - Twin10.0in L, 10.0in W, 4.5in H, and 2.75 lb Five Sided - Omniphase Mattress Protector - Twin Long10.0in L, 10.0in W, 4.25in H, and 2.88 lb Five Sided - Omniphase Mattress Protector - Split Head California King10.0in L, 10.0in W, 6.0in H, and 8.6 lb Five Sided - Omniphase Mattress Protector - Split Head King10.0in L, 10.0in W, 6.0in H, and 7.8 lb Five Sided - Omniphase Mattress Protector - Split Head Queen10.0in L, 10.0in W, 5.0in H, and 7.5 lb