Melissa extract, also known as lemon balm, is renowned for its calming and stress-reducing properties, making it a valuable addition to sleep remedies. The science behind Melissa's effects on sleep can be attributed to its ability to inhibit the action of acetylcholine in the brain, leading to relaxation, reduced anxiety, and improved sleep patterns. Lemon balm contains fenolic acids, terpenes, rosmarinic and caffeic acids.