From "Wombania's Wombat Information Center"
"A wombat spends about three-quarters of its time in its burrow. Resting in its sleeping chamber, a wombat can lower its metabolism by about a third, slowing its heartbeat and respiration in order to conserve energy. When relaxed, wombats will often sleep on their backs with their legs in the air. Like many other animals, wombats sometimes snore when sleeping. This, of course, is only referring to the male of the species. The female of the species spends most of her time cleaning up after the snoring male."
