Twin XL Platform Bed White.
Depending on the type of bridge you purchased will depend on how to install the bridge. There are a variety of kits to buy for you to seamlessly combine two twins to a king size. Since king size mattresses come with double large box springs, there is not much difference in purchasing two single beds and combine them with a single kit.

Twin XL Platform Bed Black

Twin XL Platform Bed Design

Twin XL Platform Bed Drawer

Twin XL Platform Bed Green

Twin XL Platform Bed Image

Twin XL Platform Bed Low

Twin XL Platform Bed Modern

Twin XL Platform Bed Storage