A Vehicle Specific item is specifically designed for the exact measurements of your vehicle. No alterations are required.

A universal fit item is designed to fit and work with almost any vehicle. It will work with your vehicle, but may require some modifications to fit exactly.
RV > Bedding & Furnishings : PARAMOUNT MANUFACTURING
 
Paramount Manufacturing Bedding & Furnishings
PARAMOUNT QUILTED INNERSPRING MATTRESSES
$282.99 - $438.99
Paramount quilted innerspring mattresses are deluxe mattresses that are designed and engineered specifically for Recreation Vehicle markets. These mattresses feature a premium quilted fabric for durability and medium firm support to give you an undisturbed sleep.

PARAMOUNT AERO-PEDIC MEMORY FOAM MATTRESSES
$649.99 - $859.99
Pamper yourself in luxury with these Paramount aero-pedic memory foam mattresses. These mattresses are made from Aerus™ open cell memory foam that is cooler and provides shape-conforming comfort.