Platform Bed Twin Dark.
Assemble the other three services in the other three corners, using the same method you did for the first post. Lay the mattress. If this for a queen or platform bed, add a third row of three services that run down the middle.

Platform Bed Twin Black

Platform Bed Twin Headboard

Platform Bed Twin Large

Platform Bed Twin Metal

Platform Bed Twin Narrow

Platform Bed Twin Simple

Platform Bed Twin White

Platform Bed Twin With Drawer