Zinus 12" Ultra Cooling Gel Memory Foam Mattress (King) $269

Walmart has 12" ZINUS Ultra Cooling Gel Memory Foam Mattress (King) on rollback for $269. Shipping is free. About Item: - General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperatures, at delivery, your mattress may take a bit longer to return to full-sized from its compressed state. The expansion time of the mattress will vary as per the surroundings.