Thermal properties and warmth (continued)
The R-value expresses the thermal performance and resistance of the mattress. The higher the R-Value, the more the mattress insulates you from the cold ground.
- R-value from 0 to 1.9: mattress designed for use in warm season (summer) only
- from 2 to 3: mattress design for use in 2 or 3 seasons (spring/summer/autumn)
- from 3 to 4: 4 season mattress, winter use possible
- higher than 4.5: winter use and extreme conditions