Protects teeth from clenching and grinding, without the hassle of boiling water or microwaving to fit. This dental guard is identical to the SleepRight Secure-Comfort Dental Guard, except it does NOT feature stability wings on the upper-sides. Less material reduces gum interference (especially on the upper/side gum tissue.) The bite pads automatically swivel to match bite angle and adjust to fit all sizes. This night dental guard is designed for comfort.