TOWA Space Saver Storage Bag For Futon Mattress Compression, 2 Sheet Set, Twin Size Nylon Material: [Main body] Polyethylene / Nylon, [Valve] Polyethylene, [Slider] Polyethylene Product size: about 51 x 39 in. (per sheet) Individual packaging size: about 7 x 2 x 12 in. Weight: about 0.86 lbs. This product is in 2 bags. One bag can hold a twin size Futon mattress (or Comforter and Pillow).