The Nocturne 15 is a very comfortable yet moderately heavy 700-fill down sleeping bag for people that want one bag for mostly car camping and occasional backpacking. The Nocturne's design and construction make it more comfortable than the average mummy bag we've tested-- its shape gives you a tremendous amount of space for your legs to sprawl about-- but the bag weighs as much as some tents and zero degree winter sleeping bags, and costs around $400. If you have lots of cash for a comfy all-purpose bag then this could be an OK option, but we feel that most people will be better off purchasing a camping sleeping bag for car camping and general use and an ultralight sleeping bag for backpacking. You can get two separate bags (that perform better for their specific applications) for less than the price of the Nocturne 15. Or, if you want one bag for both car camping and backpacking we recommend the Feathered Friends Penguin, which has a semi-rectangular shape provides more comfort and versatility than the Nocturne. We give the Nocturne 3 stars because of its moderate performance and poor value.
Check out our Backpacking Sleeping Bag Review to see how all of the bags compare.