Lighting plays a significant role in determining the quality of our sleep. Exposure to bright, blue light from electronic devices or energy-efficient bulbs can disrupt our natural sleep-wake cycle, known as the circadian rhythm. This delays the release of melatonin, the hormone responsible for making us drowsy. On the other hand, dimmer, warmer lighting signals the brain that it's time to wind down, promoting relaxation and better sleep. Therefore, it is crucial to create a sleep-friendly environment by using soft, warm light bulbs and minimizing screen time before bedtime. By understanding the impact of lighting on our sleep quality, we can make simple adjustments to our surroundings and improve our overall well-being.