Yu Sleep™ is a liquid dietary supplement formulated to support healthy sleep quality, relaxation, and a consistent nighttime routine. Its 10-ingredient blend includes magnesium glycinate, L-theanine, GABA, 5-HTP, lemon balm, tart cherry, apigenin, vitamins B2 and B6, and 0.9 mg of melatonin. The official website lists a $49 current price and a 60-day money-back guarantee. http://en-yu-sleep.com