In animals, sleep is a naturally recurring state characterized by altered consciousness, relatively inhibited sensory activity, and inhibition of nearly all voluntary muscles.[1] It is distinguished from wakefulness by a decreased ability to react to stimuli, and it is more easily reversed via stimuli than the state of hibernation or of being comatose.
During sleep, most systems in an animal are in a heightened anabolic state, accentuating the growth and rejuvenation of the immune, nervous, skeletal, and muscular systems. Sleep in non-human animals is observed in mammals, birds, reptiles, amphibians, and fish, and in some form in insects and even in simpler animals such as nematodes, suggesting that sleep is universal in the animal kingdom.
The purposes and mechanisms of sleep are only partially clear and the subject of substantial ongoing research.[2] Sleep is sometimes thought to help conserve energy, though this theory is not fully adequate as it only decreases metabolism by about 5–10%.[3][4] Additionally it is observed that mammals require sleep even during the hypometabolic state of hibernation, in which circumstance it is actually a net loss of energy as the animal returns from hypothermia to euthermia in order to sleep.[5]
Per: wikipedia
The cache: Why you ask did I put an article about sleep on this cache page? Well because greyhounds, albeit very fast, are very lazy. They love to sleep. They are like big couch potatoes. Bowden would sleep on her back with her eyes open, tongue on the ground, and her legs spread apart. very funny to look at. But thats how they sleep. When she would wake up she would fall over to one side with a thud. how cute. the cache is a camoed lock n lock off of the trail. THE CACHE IS NOT ACCESIBLE FROM I-16. Now if you are looking to pat your numbers, congrats! if you are looking to pat your numbers and get the number/letter combo for the final mystery cache, GC5MW65. Then please bring a writing utencil, document what you need and go for it!