Sleep

Roll 5d8. Creatures within 20 feet of a point you choose are affected in order of their current hit points. Starting with the creature that has the lowest current hit points, each creature affected by this spell falls unconscious. If the spell ends, the sleeper takes damage, or someone uses an action wake the sleeper, they will be awoken. Unconscious creatures, undead and creatures immune to being charmed aren't affected by this spell.
Higher Levels: Roll an extra 2D8 for each slot