Sleep deficiency is pervasive among astronauts before and during space flight, and the reported incidence of sleep-promoting medication use is 20 times greater than the proportion of Americans ...

GABA is a neurotransmitter that reduces brain activity, but it's also a supplement that could help with sleep.

Which sleep sound are the best for falling asleep? How about staying asleep? And is the future of sleep simply a story without an ending?

How Much Natural Sleep Aid Supplement Should I Take? Melatonin is a hormone the brain produces that plays a role in the sleep/wake cycle by promoting sleep and may help you fall asleep faster.