Sweepstakes ends August 23, 2019, at 11:59PM EDT. It is open to any United States resident ages 18 and up. This sweepstakes is sponsored by AcousticSheep LLC and Brainwave Power Music. There is no purchase necessary to win. A purchase will not increase the odds of winning. Winner will be chosen at random at a date later than August 23, 2019. Winner will be notified by email and has 30 days to claim his or her prize. Winner may choose a SleepPhones® Wireless in the size and color of his or her choosing. AcousticSheep LLC and Brainwave Power Music will deliver the product to the winner at no cost to the winner. This sweepstakes is not sponsored, endorsed, administered by, or associated with Facebook. AcousticSheep LLC and Brainwave Power Music collect and use email addresses from the sweepstakes entries for marketing purposes; you may unsubscribe at any time from these marketing communications. For questions or comments, please message us directly on our Facebook page.