To prevent night time grinding, you can wear a protective night guard.  A night guard should be well made that can fit snugly over your tooth surface and won’t get dislodged.  A hard guard can prevent the teeth from grinding and prevent the muscle from clenching, but not everyone can tolerate a hard night guard.  You can also get a clear aligner style night guard that fit over both upper and lower arches.  The clear aligner style night guard is basically a clear aligner but with a different thickness and resiliency material.  

A Snore guard can also be an effective way in preventing grinding while reducing snoring.  A snore guard works in bringing the lower jaw forward so that there is more room for your tongue and the airway is not obstructed.