This style is widely considered to have originated in Spain, but as with all evolutions of dance style this itself is widely debated. The basics are the same as Traditional Style Bachata, but with added dance elements and styling from Salsa, Tango, Zouk-lambada, Ballroom etc.
Chamomile is probably one the best known herbal teas that help you sleep and promote relaxation before bed. Chamomile makes a gentle and effective sleep tea because it contains the amino acid glycine, which acts as a nerve relaxant and mild sedative.
Some herbal supplements reduce anxiety without making you sleepy (such as L-theanine), while others are sedatives. Valerian (Valeriana officinalis) is squarely in the second category. It is a sleep aid, for insomnia. It contains sedative compounds; the German government has approved it as a treatment for sleep problems. Valerian smells kind of nasty, so most people take it as a capsule or tincture, rather than a tea.