Most LoveSac covers are designed to be machine washable (check the tags for custom covers). It is recommended that you wash them separately in cold water on a delicate cycle. For drying, the manufacturer recommends line drying. If this is not possible because of weather, try the delicate setting on your dryer and rotate the sac every 15 minutes to ensure a complete dry.
If you spill or stain your LoveSac insert (beneath the cloth cover), you will have to clean it by hand. Use a spot carpet or laundry stain solution to gently treat the affected area. Allow to air-dry completely before replacing the cover.
For pet or stain odors, try using a fabric freshener such as Febreeze. Always test the chemical in a inconspicuous spot before treating the entire sac. If climate allows, let your LoveSac air out in an outdoor environment for 6 to 12 hours. This should eliminate most odor instances.