From the manufacturer
BEHIND EVERY FLUFFY MATTRESS IS A SMARTBASE
You won’t need a box spring when you have this SmartBase. Two capable hands, about ten minutes of assembly time, and a wonder-filled imagination is everything you need.
Live in Wonder, Sleep on a Zinus SmartBase
Quick-snap assembly and sturdy support for your mattress are packed in one wonder-filled box and delivered to your front door.