The minimal design of this guard makes it perfect for daytime use. If you grind your teeth excessively at home, at the office, or in class, this guard can help you prevent teeth complications. Made with thin, clear material, our day guard is hardly noticeable when you have it in—and doubles as a great solution for light nighttime grinding. *Note: While this is our closest product to a retainer, it is not intended to be used as a retainer replacement. Please contact support@jsdentallab.com to inquiry about our retainer.