Both jasmine and lavender essential oil are popular choices for promoting sleep. Lavender oil is widely recognized for its calming properties and research has shown it can improve sleep quality. Jasmine oil, while less commonly used, has also been studied for its potential to enhance sleep quality. Its sweet, floral scent can help to create a calming atmosphere conducive to sleep. However, individual reactions to essential oils can vary and it's also a matter of personal preference. You may want to try both separately or even blended together to see which works best for you.