買一個night mouth guard睡覺的時候戴，可以避免睡時磨牙或咬傷舌頭。

關於mouth guard的介紹： 
www.webmd.com/oral-health/guide/mouth-guards

很多地方都能買到：
www.walmart.com/ip/The-Doctor-s-Advanced-Comfort-Night-Guard-1ct/10292684

www.target.com/p/sleep-right-slim-comfort-dental-guard/-/A-10508078

www.walgreens.com/q/dental-night-guard