Includes king memory foam mattress and king adjustable base Mattress comfort level: medium Mattress with memory foam layer; thick firm support foam; stretch knit cover State recycling fee may apply Mattress has 10-year non-prorated warranty Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening Base with all steel frame; quick setup; low-profile, foldable design; adjustable legs Adjustable legs allow full height to zero clearance. Compatible with most bed frames; be sure to check your frame's dimensions and weight capacities Base features adjustable head and foot; wireless backlight remote control; 2 USB power ports Base has 3-year non-prorated warranty Assembly required