When staying warm is as important as keeping your pack light, the ProLite Plus mattress is the perfect solution. Using patent-pending foam-perforating technology, we’ve created this mattress to provide exceptional warmth—up to 20% more than previous ProLite 4 mattresses—without added weight. It’s substantial enough to keep you comfortable while mountaineering or on ski tours, yet rolls up small and light enough that you’ll have no problem taking it as far as you want to go.
| Small | Regular | Large | |
| Color | Pomegranate | Pomegranate | Pomegranate |
| R-Value | 3.8 | 3.8 | 3.8 |
| Weight | 1 lbs 1 oz / 480 g | 1 lbs 8 oz / 680 g | 2 lbs 1 oz / 940 g |
| Width | 20 in / 51 cm | 20 in / 51 cm | 25 in / 63 cm |
| Length | 47 in / 119 cm | 72 in / 183 cm | 77 in / 196 cm |
| Thickness | 1.5 in / 3.8 cm | 1.5 in / 3.8 cm | 1.5 in / 3.8 cm |
| Packaged dimension | 11 x 4.0 in / 28 x 10 cm | 11 x 4.8 in / 28 x 12 cm | 13 x 5.1 in / 33 x 13 cm |
| Volume | 1410 cu. in | 2052 cu. in | 2656.5 cu. in |
| Top fabric type | Polyester | Polyester | Polyester |
| Bottom fabric type | Nylon | Nylon | Nylon |
| Foam type | Diagonal punched | Diagonal punched | Diagonal punched |
| Fill material | Urethane Foam | Urethane Foam | Urethane Foam |
| Country of Origin | Made in Seattle, USA | Made in Seattle, USA | Made in Seattle, USA |

Alpinist Magazine Mountain Standards highest 5-star "nearly perfect" Award 2007. The ProLite Plus (formerly the ProLite 4) mattress is described as "truly a step above. It elegantly blends weight savings with packability and, most importantly, comfort."