Anesthesia

You touch one humanoid creature over a span of one minute, after that minute the creature gains the unconscious condition and will not wake up for the spells duration. while unconscious, the creature feels no pain and cannot be brought back to consciousness until the spell ends.

unwilling creatures can make a constitution saving throw with disadvantage to resist the spell’s effect

When the spell ends for any reason, the creature will gain one level of exhaustion and will regain consciousness. If the creature was already unconscious when cast, their current condition will instead be suspended for the duration of the spell.

If this spell is cast onto a creature already under the spell's effects, or the creature is immune to the unconscious condition, the spell automatically fails and no spell slot or material components will be consumed.

Higher Level Casting: When you cast this spell with a 2nd level spell slot or higher, the duration of the spell is increased by 1 hour per level.