older adults need less sleep. older adults need less sleep. http://www.livescience.com/8075-older-adults-sleep.html http://www.livescience.com/8075-older-adults-sleep.html http://www.livescience.com/8075-older-adults-sleep.html need less sleep older adults need less sleep. older adults need less sleep. http://www.livescience.com/8075-older-adults-sleep.html older adults need less sleep. Live Science says