Sleep

1st-Level Enchantment
Casting Time: 1 action
Range: 90 feet
Components: VSM (a pinch of fine sand, rose petals, or a cricket)
Duration: 1 minute

This spell sends creatures into a magical slumber.

Roll 4d10; the total is how many hit points of creatures this spell can affect. Creatures within 20 feet of a point you choose within range are affected in ascending order of their current hit points (ignoring unconscious creatures).

Starting with the creature that has the lowest current hit points, each creature affected by this spell falls unconscious until the spell ends, the sleeper takes damage, or someone uses an action to shake or slap the sleeper awake. Subtract each creature's hit points from the total before moving on to the creature with the next lowest hit points. A creature's hit points must be equal to or less than the remaining total for that creature to be affected.

Creatures immune to being charmed and creatures who don't sleep aren't affected by this spell.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, roll an additional 2d10 for each slot level above 1st.

Source: PHB 276, SRD

Changelog

Altered dice rolled from 5d8 to 4d10. Upcasting has been adjusted accordingly.
Altered immunity requirements to be immunity to charmed or creatures who don't sleep instead of blanket undead immunity.