Using your Big Agnes Torchlight UL Sleeping Bag is easy. First, take it out of the stuff sack and let it fluff up. You can adjust the expandable panels according to your body shape and how you like to sleep. Just use the dual zipper sliders to unzip from the top or bottom. To keep warm, cinch the hood using the low - profile cordlock, and make sure the insulated tube on the upper hood opening is sealed. Put your small items like your phone in the internal mesh stash pocket. If you want to use a sleeping bag liner, attach it to the interior fabric loops. When it's time to store the bag, put it in the storage sack for long - term storage or the stuff sack for backpacking. Make sure the bag is dry before storing to prevent mold. If it gets dirty, follow the washing instructions on the label. Avoid machine - drying on high heat as it may damage the down insulation. Hang it up using the streamlined exterior loops to dry.