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).
A lucid dream is any: dream in which you are aware you are dreaming. It can be positive, beneficial. Vivid nightmares are not so good. When you awaken you may âre-writeâ nightmares by thinking of different (positive, under your control and desire) outcomes to events in the nightmare.