Sweet night king mattress in a box, smartly shipped to your door step for easy set up. -The best price mattress you can get. We are the maker, no channel cost, real quality at half price. -Our bed mattress comes with a 10 year . – Over 96% of our customers keep their king size spring hybrid mattress and refer it to others. -24/7 email support. If for any reason you are unsatisfied, contact us at any time. About Sweetnight MattressesWe know how hard it is to find the perfect mattress that fits just right and suits all your needs. We believe everyone should sleep well and feel refreshed after a hard day’s work. After over 10, 000 users experience, feedback, studies people, bodies, countless material testing, we have created this king size mattress just for you! What makes Sweetnight Hybrid mattress so different?- It has a breathable, quilted knit pillow top cover with bright gray side panels, making it the perfect queen size mattress design. Say goodbye to ugly pale mattresses. – The gel memory foam layer comfortable, breathable, and slowly adjusts to your body temperature; and most of all its ability to inhibit bacterial and parasitic growth. -Compatible with all set ups. The king size mattresses are designed to rest on any firm, flat surface, irrespective of whether it is boxsping/foundation, platform or slatted base. What is in the box? 1x Sweetnight hybrid mattress 1x night sleep opener 1x manual & card Note: Please follow the guides in the manual accordingly. Endeavor to open your mattress package within 72 hours of reception and allow 72 hours for your new mattress to return to its original, plush shape.