Hi @Daryl Sarkisian this is a great topic for discussion. I too use a night mask as it helps in a couple of ways; as the mask is blocking out light it encourages melatonin production, which promotes sleep by regulating our circadian rhythm and providing more REM sleep which is needed for dreaming. It helps us move through the stages of sleep better and also helps heighten our other senses, including our self awareness as we sleep, so we experience dreams more intensely and are more likely to remember them. Blocking all light is a lesser form of sensory deprivation called sensory reduction, which was used in healing sanctuaries in ancient Greece, based on Hippocrates teachings. In order to induce healing dreams, patients would spend the night in a dark, quiet chamber called an abaton in order to allow the body to heal 🛌🏾