Hazle Health Sleep Perfect Formula provides an innovative blend of nutrients that promote soothing and restful sleep. The non-habit-forming ingredients were specifically chosen to promote healthy circadian rhythms and help relax tense muscles. While most prescription medications can cause morning sleepiness, Sleep Perfect Formula is designed to provide individuals with restful slumber and a rejuvenated body upon awakening. Melatonin is the principle hormone responsible for healthy circadian rhythm and normal sleep cycles. 5-HTP has the ability to cross the blood brain barrier to increase CNS production of both serotonin and melatonin. L-Theanine has mood-modulating activity believed to be through its direct effects on GABA receptors . Sleep Perfect Formula also provides a significant dose of nervine herbs such as passion flower, chamomile and hop.