Cause Sleep

You force a humanoid you can see within range to become drowsy or fall asleep. It must make a Wisdom saving throw, and does so with advantage if you or your companions are fighting it. If it fails the saving throw, it is unconscious by you until the spell ends or until you or your companions do anything harmful to it. When the spell ends, the creature feels rested as if it had slept an entire night.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you can target one additional creature for each slot level above 1st. The creatures must be within 30 feet of each other when you target them.