Youtheory Sleep Powder The size of this fast-acting powder is perfect for travel and the ever-looming jet-lag that tends to follow. Share this:FacebookEmailPinterestTwitterRedditTumblr Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email.