FlyKitt is highly effective in alleviating jet lag for 95% of travelers. However, in the uncommon event that you do not experience a restful sleep after your first night of using FlyKitt and continue to feel a lack of alertness the following day, we are here to assist you. Please share your experience with us by emailing flykittsupport@fount.bio. We value your feedback and satisfaction, and if needed, we are prepared to provide a full refund for your FlyKitt purchase. We do not provide refunds for add-ons.