Need to establish if it is an RV King or regular King, same goes for Queen beds too. The RV King and Queen beds are 6" shorter than a standard residential King or Queen bed. My Coleman came with an RV Queen, too short for me. We solved the issue by putting a piece of upholstery foam at the head of the bed, used a 4" queen topper and standard queen sheets. Now the bed is long enough for me.
Aaron