Abstract: Systems, apparatuses, and methods for aiding a user in ceasing or at least ameliorating sleep or awake bruxism, or apnea, or snoring. The unit is fully enclosed against fluid incursion and placeable between a user's teeth and adjacent cheek, such as while the user is sleeping or awake. A flange extends from a lateral side of the unit, so as to fit between the user's upper and lower teeth and locate the unit in place. The unit includes a circuit that, when completed, such as by the user clenching his/her teeth, causes a mild vibration mechanism to activate and cause a sensation which signals the user to stop clenching his/her teeth. The vibration is preferably such that, if the user is sleeping, the user is not fully awakened but mildly startled to break whatever condition has set off the unit.