Introduction
deaths, coldness
It has been pointed out that the poor environment of evacuation shelters causes health problems and disaster-related deaths among evacuees, and we are concerned that their environment will deteriorate, particularly during a large-scale disaster such as a Nankai Trough earthquake due to a shortage of daily necessities (According to the Guidelines for the Operation of Evacuation Shelters, Japanese municipalities had not been required to stockpile bedding without blankets, and cots and mattresses, including futons, are to be considered for installation 72 h after the disaster (Therefore, we considered potential alternatives that could be produced in large quantities over a short period. Bubble wrap with a very lightweight and waterproofing could be a good candidate for mattress replacement. This study aimed to investigate the improvement in body pressure distribution and pressure-sensing contour area when using bubble wrap. Since a cardboard bed is known to reduce dust inhalation and interrupt the coldness transmitted from the floor, it is expected to contribute more than ever to maintaining the health of evacuees if the body pressure concentration can be improved.