A double gaucho is a type of bed that has two sides that can be extended out. If you want your mattress to be further away from the wall, then using this bed will give you more legroom and space to walk around.
The downside of this setup usually involves where it’s placed in your vehicle. Because having one side on each side of the driver means if someone walks past them they’ll have to climb over the mattress which is inconvenient. It also takes up a lot of space when not in use so if you don’t drive a larger model you’ll probably need a smaller gaucho setup instead.