For a healthy and restful sleep Good Night Denk is a dietary supplement with plant-based ingredients, L-tryptophan, vitamin C, and niacin. The product can support healthy sleep and improve sleep quality. The optimally coordinated ingredients promote ideal regeneration overnight. L-tryptophan is an amino acid and the precursor of melatonin. The hormone melatonin plays an important role in regulating the sleep-wake cycle. Vitamin C and niacin support the normal function of the nervous system and normal psychological function. Valerian extract is known for its calming effect. Lemon balm has a calming effect which can have a positive impact on sleep quality.