The width of the bed between the wheel wells is just under 45 inches.  The Rev Tent can squeeze in here no problem!  

You'll just be compressing the mattress an inch or so on each side.  But the mattress is foam and it's flexible. 

The length of the Gladiator bed is just over 81 inches and while we recommend 84" of flat surface to set up the Rev Tent, you'll find the tent only overhangs an inch or so when pushed up against the back of the bed.  This looks just fine and you'll never notice when inside the tent.