How to build a DIY platform bed sleeping platform area for your SUV, Subaru, 4Runner, Xterra, etc. using simple methods and tools. Camp in comfort when you sleep in your SUV. This build is for my Subaru Forester, but have also used it in my newer vehicle, a Toyota 4Runner with only a slight mod. This design is for one person but could also be used for two people by making it wider.