When I received my new mattress I wasn't sure how it would be seeming it came in a box that was roughly 4' tall and 3' in diameter. It was amazing though once I took the cellophane off a king size mattress popped out. After sleeping on it the first night I woke up feeling the most rested I've been in years. I have back pain from two back surgeries and didn't feel hardly any when I got out of bed. Besides being so comfortable the mattress adjusted my body temperature throughout the night keeping me cool. I'd recommend anyone looking for an awesome mattress to purchase a Helix Twilight Luxe because I love mine!