Enjoy the strong support and convenience of the Mehdi Deluxe Smart Box Spring. Compact packaging allows for tight interior spaces such as stairs and hallways. Easy assembly with all the needed tools included. Non-slip fabric surface keeps the mattress from sliding. The Zinus Deluxe 5 Inch Smart Box Spring is available in Twin, Full, Queen, and King. Please note that the bed frame is sold separately. In the wondrous world of Zinus, mattresses are marshmallows and bed frames snap together in seconds. A world where sofas are so comfy you won’t miss your bed and being head over heels about love seats is commonplace. Zinus' patented compressed and rolled mattresses were one of the first in the market with the idea of delivering the gift of a good night's sleep. At Zinus, we believe that harmony makes the world go around. So, we’re constantly evolving and aspiring to products that are easy to order, expertly packaged and quick to assemble. Let’s just say we are re-imagining “convenience and comfort” one room at a time. Join us on our journey. Live in wonder.