After using our $27 RV platform and $20 Mattress Topper for a few months worth of trips, we made time to tailor a better fit for our vehicle. Our sleeping platform is 73″ long, 40.5″ wide at foot & 47″ wide at torso level. The length and torso width are the correct dimensions for a full mattress. We had satisficed with the folded sides in the foot box on weekend trips.
We had considered custom ordered but never seemed to prioritize it.
We used a large roll of red paper (from the paint section of home depot) to make templates of our sleeping platform.
We then took those inside and laid them out on the mattress.
We then cut the mattress to size with an exacto knife.
We also flipped the mattress and carved a section of the foam out to seat over the center console with a slightly reduced bulge.
The finished product gives more foot room and makes taking the mattress in and out easier.