Sleep is not just a resting process for the body. It is closely related to multiple structures in the brain. Understanding the role of these structures can help improve our sleep quality. Some key areas in the brain play a vital role in regulating the process of sleep and wakefulness. Here are five brain structures closely related to sleep and their functions.

**Hypothalamus**, a small gland as small as a peanut located deep in the brain, controls the transition between sleep and wakefulness. The suprachiasmatic nucleus (SCN) in the hypothalamus can receive light information from the eyes and regulate our circadian rhythm. Therefore, it is important to receive natural light in the morning for good health. The suprachiasmatic nucleus is also closely connected to cells and organs throughout the body, helping to coordinate physiological activities so that we can maintain a good work and rest schedule.

**Brainstem** is an important area located at the base of the brain. It works with the hypothalamus to control the transition from wakefulness to sleep. Structures such as the pons, medulla oblongata and midbrain in the brainstem contain many sleep-related neurons. As sleep-promoting cells in the hypothalamus and brainstem secrete GABA (aminobutyric acid), the nervous system slows down, helping us calm down and prepare for sleep.

The thalamus acts as a relay during sleep. It transmits signals from the senses to the cerebral cortex, which interprets this information and turns it into memory. The thalamus becomes quiet during deep sleep, helping us shut out external distractions. During REM sleep, the thalamus becomes active again, sending images, sounds, and other sensory information to the cerebral cortex, which make up our dreams.

The pineal gland is located between the two hemispheres of the brain and is responsible for the secretion of melatonin. Melatonin is a key hormone that helps us fall asleep, and its secretion is affected by the light in the outside world. When the light gets dim, the pineal gland increases the secretion of melatonin, which helps regulate the circadian rhythm and synchronizes our body clock with the external light-dark cycle.

The amygdala is a structure responsible for processing emotions, and it becomes extremely active during REM sleep. Because of the involvement of the amygdala, strong emotional reactions such as crying may occur in dreams. Long-term lack of sleep can affect the connection between the amygdala and the anterior cingulate cortex, causing emotions to become more sensitive, which may affect our emotional state the next day.

Understanding how these brain structures work during sleep can help us optimize our sleeping habits and improve sleep quality. In addition, choosing a high-quality mattress can also greatly improve our sleeping experience. Mattresses made of **Fine Revo material**, combined with high-density design and solid support, can provide a more stable and comfortable sleeping experience. Its unique detachable and foldable function makes the mattress easy to clean and maintain, and the non-slip design ensures stability during sleep. More importantly, **Fine Revo mattress** provides a 2-year warranty to ensure that you can still enjoy a comfortable sleep during long-term use. Choosing such a mattress will help you enjoy quality rest every night and improve the health of your body and brain.