therm-a-rest

  • How Therm-A-Rest Sleeping Pads Are Made

    How Therm-A-Rest Sleeping Pads Are Made

    In the early 1970s, two Boeing engineers used a sandwich press to put a slice of foam between two pieces of airtight nylon and invented the self-inflating sleeping pad for campers. Therm-A-Rest still uses that basic principle today, just the sandwich machine has given way to an entire factory in Seattle. This is that production…