Can Therm-a-Rest make a custom mattress for me? April 24, 2025 04:02 Updated No, we are unable to accommodate custom mattress requests due to the complexity and internal resources necessary to maintain a custom mattress program. Related to Thermarest Related articles What is the life expectancy of my sleeping pad? How Does a Self-Inflating Sleeping Pad Work? How do I file a warranty claim? What makes the TwinLock™ Valve different from Classic Therm-a-rest Valves? How to Remove and Install MSR Snowshoe Straps