Our Best Warm-Weather Z-Catcher Listen, we’re not here to tell you where to sleep—we’re just here to help you catch ALL THE Zs when you get there. So, whether you’re headed for Yellowstone or a youth hostel, the Rambler has got you. This lightweight bag is both roomy and versatile, with features the Comfort-Tuck zipper system for airing your tootsies, a semi-rectangular shape you can unzip to use like a blanket and a compression stuff sack.