R-Value/Temperature-Rating Guide
| CONDITIONS | WARM | COOL | COLD | EXTREME |
| Nighttime Low | 50°F | 32°F | 20°F | 0°F |
| R-Value Range | Under 2 | 2 – 3.9 | 4 – 5.4 | 5.5+ |
| CONDITIONS | WARM | COOL | COLD | EXTREME |
| Nighttime Low | 50°F | 32°F | 20°F | 0°F |
| R-Value Range | Under 2 | 2 – 3.9 | 4 – 5.4 | 5.5+ |