Abstract: A cushioning member comprising a cushioning layer, a heat insulating layer, and a dress covering is provided. The heat insulating layer is a laminate comprising (A) a flame-proofing layer and (B) a reinforcing layer, wherein the mainfibers of the flame-proofing layer (A) have a melting point of at least 300.degree. C., a specific gravity not higher than 1.6 g/cm.sup.3, and a limiting oxygen index (LOI) of at least 33 and the main fibers of the reinforcing layer (B) have a limiting oxygen index (LOI) smaller than 33 but not smaller than 25, a specific gravity not higher than 1.6 g/cm.sup.3, a tensile strength of at least 3.2 g/d, and a toxicity test value of at least 10.The cushioning member has a light weight and an easy moldability and also has heat insulating and flame-proofing characteristics capable of satisfying the fireproof regulations of the Federal Aviation Administration.