The North American House Hippo is found throughout Canada and the Eastern United States. House Hippos are very timid creatures and are rarely seen, but they will defend their territory if provoked. They come out at night to search for food, water and material for their nests. The favourite foods of the House Hippo are chips, raisins and crumbs from peanut butter on toast. They build their nests in bedroom closets, using lost mitten, dryer lint and bits of string. The nests have to be very soft and warm. House Hippos sleep for about 16 hours a day.