Minor Sleeping Curse

This spell sends creatures into a magical slumber. Each creature in a 20-foot-radius sphere must make a dexterity save. Roll 8d6, creatures with health that is lower or equal to the total are affected by this spell on a failed save, or half of the total on a success. When you cast this spell using a spell slot of 2nd level or higher, the total number of dice rolled increases by 1d6 for each slot level above 1.