Gentle Repose

The target can't become undead and doesn't decay. Days spent under the influence of this spell don't count towards the time limit of spells which raise the dead. At Higher Levels. The spell's duration

Level
2
School
Necromancy
Casting time
1 action
Range
touch
Components
V, S, M
Duration
10 days
Classes
Cleric, Wizard
Ritual
Yes

The target can't become undead and doesn't decay. Days spent under the influence of this spell don't count towards the time limit of spells which raise the dead.

At Higher Levels. The spell's duration is 1 year when using a 3rd-level spell slot, or permanent until dispelled when using a 4th-level spell slot.

Source and licence

From Level Up: Advanced 5e (A5E SRD).

Licence: SRD (CC BY 4.0).

Every licence notice Tavern Bag relies on.