Enchanted Rest

Upon beginning the ritual five willing creatures that you select fall unconscious for the spell's duration. The spell ends on a target early if it takes damage or someone uses an action to shake or slap it awake. If a target remains unconscious for the full duration, that target gains HP up to half of their total HP, and regains any spell slots and abilities that refresh after long rest or short rest. This spell can only be cast once per long rest, and can only be regained after a long rest, not as an effect of another person casting it upon the caster.