Sleep in safety and luxury every night with the Lucid 5-inch Gel Memory Foam Mattress and waterproof mattress cover set. A 1-inch comfort layer of gel-infused memory foam offers pressure-point relief, dispersing weight evenly while the 4-inch foundation supportive base foam provides deep-down support for a firm feel. The soft, lightweight cotton terry surface of the vinyl-free elasticized mattress cover is 100-percent waterproof while offering breathable and quiet rest free of dust mites and allergens. Features:  Dual-layer mattress offers medium-firm support 1-inch comfort layer of gel infused memory foam Pressure relieving comfort with plenty of support 4-inch supportive foam base Antimicrobial, eco-friendly, hypoallergenic, resistant to mites Mattress foam is CertiPUR-US certified Never needs turning For convenience, mattress is compressed and shipped in a box Quilted polyester top and polyurethane foam Dimensions:  California King: 72 inches wide x 84 inches long x 5 inches thick Full: 54 inches wide x 75 inches long x 5 inches thick Full XL: 54 inches wide x 80 inches long x 5 inches thick King: 76 inches wide x 80 inches long x 5 inches thick Queen: 60 inches wide x 80 inches long x 5 inches thick Twin: 39 inches wide x 75 inches long x 5 inches thick Twin XL: 39 inches wide x 80 inches long x 5 inches thick Mattress Cover:  Fully elasticized Waterproof protector guards top of mattress from stains Noiseless, hypoallergenic cotton terry surface Lightweight, breathable; will not change the feel of the mattress Fitted sheet-style protector Blocks liquids, dust mites, and allergens 100-percent waterproof barrier is vinyl free Machine washable, can be dried on low heat Cotton-polyester blend surface