Sleep Brew 1 part Rose petals 1 part Myrtle leaves 1 part Vervain Soak rose petals in a pot of water for three days. Add more rose petals each day. On the third day, add myrtle and vervain at sunrise and let soak all day. That night, just before going to bed, bathe your forehead with three handsfuls of the brew. Your sleep should be free from nightmares. Use the brew until gone, then make another batch if needed.