RV sliding mattress deck accessory

A sliding mattress accessory designed to be used with an mattress support system coupled to an RV slide-out, the mattress support system is affixed to the RV slide out and includes a storage platform that continuously extends into the RV slide-out when the RV slide-out extends and retracts from the RV, the storage platform includes a lower storage cavity and a primary deck that supports a mattress placed on top of the storage platform, the primary deck includes a fixed deck section and a lifting deck section that provides access to the storage cavity, the accessory comprises:

• a. secondary deck longitudinally aligned over the primary deck, the secondary deck includes a fixed head section and a long deck section;
• a hinge located between the fixed head section and the long deck section that enables the long deck section to pivot upward from the fixed head section;
• at least two parallel long sliding rails longitudinally aligned and between the long deck section of the secondary deck and the lifting deck section on the primary deck, the two sliding rails connect the lifting deck section to the long deck section enabling the lifting deck section and long deck section to be simultaneously lifted to access the storage space, the two sliding rails also elevate the long deck section above the lifting deck section and also allow the long deck section to slide longitudinally over the lifting deck section, each sliding rail includes a fixed rail member attached to the lifting deck section and a sliding rail member attached to the long deck section, when the sliding rail member slides over the fixed rail member, the fixed rail member is partially exposed;
• at least one fixed deck support mounted on the top surface of the fixed deck section on the primary deck, the fixed deck support configured to support the fixed head section at the same height elevation above the fixed deck section as the long deck section above the lifting deck section thereby allowing the fixed head section on-the entire secondary deck to slide axially over the fixed deck supports and onto the fixed rail member when the secondary deck slides over the primary deck;
• and
• a lock mechanism configured to selectively prevent the secondary deck from sliding longitudinally over the primary deck.