2012 Heartland Wilderness 3150 DS, 2012 Heartland Wilderness 3150 DS This full featured trailer, Heartlands newest edition, is the perfect light weight package for the traveling family. The openness of the Wilderness trailer with its curvilinear roof measuring in at seven feet, and oversized windows that let you bring your surroundings right inside are just the start. Sleeps 8 With 2 Slide-outs Hitch Weight=560 Dry Weight=6991 GVWR=8600 Fresh Water=36 Grey Water=35 Black Water=35