Pineal gland
the pineal gland
Pineal gland
Pineal gland
melatonin
It would be an overstatement that a gland is responsible for sleep, however, the pineal gland does have some connection to sleep. It secretes a hormone called melatonin which contributes to sleepiness.
Circadian
Circadian
Melatonin. You can buy it in pill form at most grocery stores and drug stores.
That controls sleep and wakefulness. It is the body's natural clock. It is a biological rhythm or cycle of approximately 24 hours.
Pineal gland or Pineal body which makes melatonin, a hormone important in the sleep-wake cycle. It also influences sexual development
i believe it is pituitary gland not 100% sure
The hormone melatonin, which is secreted by the pineal gland.