Bamboo and Durable Steel STYLE, SUPPORT, CONVENIENCE - Designed with all the style and support of our original Suzanne bed, but now with a convenient 6-inch headboard shelf with three built-in USB ports to keep you always connected BUILT TO LAST - Naturally durable and sustainable bamboo headboard and footboard are combined with a solid steel frame to ensure ultimate stability and longevity; twin size can support up to 350 lbs, while other sizes can support up to 700 lbs NO BOX SPRING NEEDED - Closely spaced wooden slats are securely fastened to the frame for squeak-free use and durable mattress support without a box spring EASY ASSEMBLY – What you need for painless setup is efficiently packed into one box and shipped straight to your door; all parts, tools and instructions are included for intuitive, two-person assembly that takes less than an hour Worry-free 5 year limited warranty included; mattress sold separately