Here is how these two sleeping pads compare on the numbers. Both are solid; the right one depends on the specs you care about most.
| NEMO Tensor Extreme Conditions | Exped Ultra 8R Mummy | |
|---|---|---|
| GearScore | 83✓ | 80 |
| Warmth (R-value) | 8.5 R | 8.8 R✓ |
| Weight | 17.8 oz | 17.0 oz✓ |
| Warmth-to-weight | 1.68 R/100g | 1.83 R/100g✓ |
| Packed size | 2.08 L✓ | 2.93 L |
| Thickness | 3.5 in | 3.5 in |
| Durability | 34 /100 | n/s |
| Price | $260 | $230✓ |
| Features | 4Quiet fabric, Pump sack included, Two-way valve, Repair kit included✓ | 2Pump sack included, Repair kit included |
| Type | Inflatable | Inflatable |
| Shape | Tapered | Mummy |
Highlighted cells mark the better spec: Tensor Extreme Conditions in blue, Ultra 8R Mummy in amber. A blank spec is never counted as a win. GearScore is the rating for the Overall use-case (0 to 100). Pick another above to re-score. Prices are current MSRP.
The NEMO Tensor Extreme Conditions against the Exped Ultra 8R Mummy is a study in priorities. The Tensor Extreme Conditions wins on packability, and the Ultra 8R Mummy pushes back on warmth and low weight.
The Tensor Extreme Conditions is more packable (2.1 L vs 2.9 L). The Ultra 8R Mummy is warmer (R 8.8 vs R 8.5), 1 oz lighter, and stronger on warmth-to-weight. On the default GearScore the Tensor Extreme Conditions leads 83 to 80.
Pick the Tensor Extreme Conditions if you care most about packability, which makes it the better call for saving space in your pack. Pick the Ultra 8R Mummy if warmth and low weight matter more to you, or you are focused on colder nights and shoulder-season trips.
The Exped Ultra 8R Mummy. It is warmer (R 8.8 vs R 8.5) than the Tensor Extreme Conditions.
The Exped Ultra 8R Mummy. It is 1 oz lighter than the Tensor Extreme Conditions.
The NEMO Tensor Extreme Conditions, 83 to 80 on the default algorithm. You can re-weight the factors to match your trip.
It depends on your priorities. Go with the Tensor Extreme Conditions for packability, or the Ultra 8R Mummy for warmth. The spec table above shows exactly where each wins.