http://mouthguardstore.com/products/nrg-teeth-clenching-nightguard

The Night Relief Guard (NRG) is your introductory Nightguard choice for teeth clenching and grinding during the night (bruxism). This soft Boil and Bite Nightguard can help you with the pain of nighttime clenching especially for cases of mild-moderate teeth grinding. Read more about Nightguards in the Usage Details section below.