The stretch sidewalls neatly fit most mattresses & Box springs up to 15 inches.0 x 78. Care InstructionMachine wash coldPermanent press cycle with like colorsDo not bleachTumble dry no heatDo not ironDo not dry cleanSpecificationsColor: WhiteSize: Queen SizeCover: 70% Cotton & 30% RayonLining: 100% PolyurethaneReverse: 50% Polypropylene & 50% PolyethyleneSidewall: 100% PolyesterDimension: 80.