Inflation valve allowing for rapid inflation and deflation of an inflatable object

An inflatable mattress configured for being inflated by a user, the inflatable mattress comprising:

• an inflatable mattress object configured for receiving a volume of air;
• an inflation chamber protruding from the inflatable mattress object, the inflation chamber defining at least one outer opening configured for receiving air from outside the inflatable mattress object and at least one inner opening in fluid communication with the inflatable mattress object, wherein the inflation chamber is configured for being unrolled into an open configuration in which the inflation chamber permits air to enter the inflatable mattress object and rolled into a closed configuration in which the inflation chamber prevents air from escaping the inflatable mattress object;
• a fastener configured for selectively securing the inflation chamber in the closed configuration;
• and
• a one-way valve defining a first open end and a second open end, wherein the one-way valve's first open end is attached to the interior of the inflation chamber at a location that is closer to the inflation chamber's at least one outer opening than to the inflatable mattress object, and wherein the one-way valve's second open end is moveable relative to the inflation chamber and permits the one-way valve to be adjusted between a non-inverted orientation, in which the second open end is positioned inside of the one-way valve's first open end, and an inverted orientation, in which the second open end is positioned outside of the one-way valve's first open end;
• wherein the one-way valve is configured to permit inflation of both the inflation chamber and the inflatable mattress object when the inflation chamber is in the open configuration and the one-way valve is in the non-inverted orientation;
• wherein the inflation chamber is configured such that, when inflated and rolled from the open configuration into the closed configuration, the inflation chamber forces air within the inflation chamber into the inflatable mattress object;
• and
• wherein the one-way valve permits deflation of both the inflation chamber and the inflatable mattress object when the inflation chamber is in the open configuration and the one-way valve is in the inverted orientation.