Does anyone have any ideas how to comfortably sleep in the back seat area of a crew cab of a '17? Going on a camping trip where my big rig won't fit and my 2 horse trailer doesn't allow me to open any doors from inside. Since there is a good population o bears where I a going I need somewhere safe to sleep and thought about the cab. I did that once in my old 350 and the hump in the middle was miserable and my self inflatable mattress was longer than the back seats were wide..lol. Any ideas appreciated.