OSEA . Vagus Nerve Pillow Mist. . This Product Is:. a calming pillow mist that helps promote a sense of well-being and relaxation before sleep. . Good for:. calming and promoting relaxation. Why We Love It: . OSEA Vagus Nerve Pillow Mist contains a proprietary blend of essential oils that helps promote a sense of soothing before bed for a moment of balance and well-being. The vagus nerve activates the body’s relaxation response and helps regulate stress. Named after the Latin word for “wandering,” the vagus nerve is the longest cranial nerve in the body that stretches all the way from the brain to your stomach.. . Key Ingredients:. . . chamomile oil: known for its calming and soothing effects. lemon Tree oil: provides tranquility to melt away signs of stress. lavender oil: promotes relaxation. .