An inactive state resembling deep sleep in which certain animals living in cold climates pass the winter. In hibernation, the body temperature is lowered and breathing and heart rates slow down. Hibernation protects the animal from cold and reduces the need for food during the season when food is scarce. Compare estivation.
Does Dreaming Indicate a Good Nightâs Sleep? Dreams are typically indicative of a good nightâs sleep, demonstrating that you have passed through the light sleeping phase (NREM) and entered into a deep sleep (REM).
It's wonderful that you got a good night's sleep last night. Many people struggle to do so. Having a good sleep routine often is the key to getting the quality sleep night after night that your body needs for optimal health.Since you usually get less sleep, talk to your doctor about your sleep patterns.y sleep architecture, she refers to the pattern of sleep cycles that one completes in a night's time. Sleep is prompted by natural cycles of brain activity and consists of two basic states: rapid eye movement (REM) sleep and nonrapid eye movement sleep, which consists of stages 1 through 4.