>>934300My truck has a permanent pvc canopy on a metal frame sort of like that.
Insulation is terrible, so is wind noise so choose parking carefully.
When its cold you will need a good blanket or three.
At first I'd just have cardboard as a sleeping mat/insulation. Then I ply lined the bed and got a foam mat.
Air mattress don't work for me because they're too soft and I keel tossing and turning.
A heavy blanket solves all of this and keeps you from moving.
Also jack stands, to keep the truck stable.
Everything else is pretty much like regular camping.
