Lavender essential oil is recognized as calming and tranquilizing essential oil. Just drop a drop on the pillow towel before going to bed, which will have a refreshing effect. If insomnia is caused by anxiety, you can try grapefruit essential oil, which can effectively relieve headache, fatigue, anxiety and other adverse symptoms and relieve your mood. Chamomile essential oil can also treat insomnia. Among them, Roman chamomile has a very good effect and is suitable for treating insomnia caused by stress. There is also a German chamomile essential oil, which looks very special because of the blue chamomile oil hydrocarbon, but it tastes bad and a little irritating.