Massage bubble generating inflatable article

An inflatable article for a user to rest thereupon, said inflatable article being capable of generating massage bubbles for said user when said inflatable article is immersed in water, comprising

• at least three layers of PVC sheets including a first layer of PVC sheet, a second layer of PVC sheet, and a third layer of PVC sheet, said second layer of PVC sheet being sandwiched between said first layer of PVC sheet and said third layer of PVC sheet and said first layer being in contact with the user when the user rests upon the inflatable article;
• said first layer of PVC sheet and second layer of PVC sheet being heat-sealed together at a plurality of upper joints and along their peripheries so as to form at least one inflatable upper air chamber and at least one vent passage between said first layer of PVC sheet and said second layer of PVC sheet;
• said first and second layers including respectively upper and lower air vent holes offset from said at least one air chamber and communicating with each other by way of said at least one vent passage;
• said second layer of PVC sheet and said third layer of PVC sheet being heat-sealed together at least along their peripheries so as to form, between said second layer of PVC sheet and said third layer of PVC sheet, at least one air passage, and means for connecting said air passage to a pressurized air supplying means for causing pressurizing air supplied by said pressurized air supplying means to enter said at least one air passage and pass through said upper and lower air vent holes, into the water in which the inflatable article is immersed beneath the user resting thereon;
• and means for permitting inflation of said at least one air chamber.