this mod adds 3 new beds specifically designed for your pets. They can respawn your pet when they die and it looks really cool for making rooms specifically designed for pets. this mod also adds the functionality to give a dog a totem of undying so it can survive any harsh environment.
things to note:

• the beds will blow up in the nether.
• if a pet goes into another dimension, and dies, it will not respawn.
• players and other entities can walk through the beds.
• for crafting recipes, watch the video where show how to craft these items.
• every time a pet dies and respawns, they lose their spawn point so you have to set it again.
• I have not tried this mod on any other version besides 1.16.4 so I don't know what other versions it works on.
• have a great rest of your day :)