Camping can get super messy. Trekking through a dirt trail or getting caught in the mud after a refreshing rainstorm can leave you looking like a swamp monster. To keep your sleeping area clean and safe from moisture, make sure you lay down a waterproof camping mat. Guide Life's lightweight polypropylene mud room and camping mats come in four sizes—small (2' x 3'), medium (4' x 6'), large (7' x 7.5'), and extra-large (7.5' x 8.6'). They are mildew-resistant, reversible, and eco-friendly. Maybe most importantly, they don't retain smells, are easy to clean, and are built rugged enough to endure extended stays in the outdoors. $15-$45.