Want a way to heal your character in down time? With Take a Rest you can do that.

After crouching and standing still for a little while you will start resting. While resting you gain regeneration until you take damage or move again.

Supports mc versions 1.20.1 through 26.1.2

Config

Change time delay until resting (in ticks):

/scoreboard players set tar.settings tar.heal.delay 160

Take hunger while resting: /scoreboard players set TARest.Config TakeHunger 1

Turn off resting particles: /scoreboard players set TARest.Config RemoveParticles 1