Take a melatonin supplement
Melatonin is a hormone that aids in the regulation of sleep and blood pressure. Melatonin pills have grown in popularity as a sleep aid that can improve the quality and length of your sleep. While enough sleep may help HGH levels, an additional study has shown that a melatonin pill can directly increase HGH synthesis.
Melatonin is also relatively non-toxic and harmless. It may, however, disrupt your brain chemistry in some ways, so consult your healthcare practitioner before using it. To get the most out of it, take 1-5 mg around 30 minutes before bed. Begin with a smaller dose to check your tolerance, then gradually raise it as required.