Eternal Rest

You touch a creature and put it into a death-like slumber. The target must make a Wisdom saving throw. On a successful save, the creature is unaffected. On a failed save, If the target has 200 hit points or fewer, the creature falls unconscious and appears dead to all outward inspection and to spells used to determine the creature’s status.

While under the effect of this spell, the target is in suspended animation. Time ceases to flow for it, and it doesn’t age. All physical and magical ailments affecting the target are also suspended until the spell ends.

The target can remain in this state until the spell is dispelled. The spell can only be dispelled by a wish spell or similar level of powerful magic.