There are tents that use similar concepts such as this insulated one: https://www.cruaoutdoors.com/products/crua-cocoon-two-person-insulated-tent https://www.c

There are tents that use similar concepts such as this insulated one: https://www.cruaoutdoors.com/products/crua-cocoon-two-person-insulated-tent https://www.cruaoutdoors.com/products/crua-cocoon-two-person...