Our Bed Timing Vapour Patches contain lavender oil, eucalyptus oil, cedar. It can enhance deep sleep, relieve fatigue, aid sleep quickly, increase melatonin, help relax the mood and enter deeper restorative sleep. The way to use it is very simple: wash and dry your skin before going to bed, open the package to take out the patch, peel off the back film and apply the patch to the skin of your arm, press gently, and when you wake up, peel off the patch. Relieve fatigue and anxiety during daytime work and study, relax body and mind, improve sleep quality, and increase deep sleep.