If you find that this bag is difficult to purchase at major retailers and you're looking for a Top Pick sleeping bag within the same price range, consider the Mountain Hardwear Ultralamina 15, $275. The Nemo Siren, $350, will cost you a bit more, but it works well on fast and light warm weather trips. If you are not a serious ultralight backpacker and just want a bag to get you through a trip or two, we found the Kelty Cosmic Down 40 surprisingly adequate for only $100.
The Revelation is slightly less comfortable and not as warm as quilts that cost at least $100 more. See our Ultralight Sleeping Bag Review for how this bag compares to others.
The Revelation has been updated! See below for more details!