Introducing the innovative mattress from OSO. It arrives with free shipping in a surprisingly small box. The bed is designed with patented Dream Cell technology to give you a soft as well as a firm option within the same mattress. Choose your favorite, and rotate the bed 180 degrees to switch between the two levels of comfort as often as you want. Take 101 nights to decide if this bed is right for you and if you feel it’s not, you can always take your money back. Each layer of this mattress was carefully chosen to conform to rigorous health and safety standards from skin-friendly textiles, materials with no off-gassing, and anti-bacterial, dust mite-resistant latex. This sophisticated mattress will undoubtedly help you rest easily at the end of a tiring day.