The Nemo Equipment Tango Solo is one of the more innovative sleeping bags produced by a large manufacturer. It is a very roomy closed footbox quilt that mates up perfectly with a large sleeping pad. A warm detachable hood and a fold-in neck blanket are very comfortable features. However, compared to the other quilts and bags we tested in our ultralight sleeping bag review, it is simply too heavy to score well. Additionally, it is not as warm relative to the weight as other competitors.
Our Editors' Choice winner for ultralight sleeping bags is the Katabatic Gear Palisade 30. It is also a closed footbox quilt, but was the warmest bag we tested and a full 10 ounces lighter than the Tango Solo. If you're seeking the absolute best warmth-to-weight ratio in an ultralight sleeping bag, the Palisade is it. But it is quite expensive. Ultralight backpackers on a budget will find great value in our Best Buy Winner, the Enlightened Equipment Revelation 20, which is also a top scorer with a more affordable price tag.