Phantom curse is a datapack for Minecraft 1.20 and up which aims to rework how phantoms spawn and interact with the player.

I've done away with the required sleeping every 3 days and introduced a new way to spawn them in. When fighting a witch mob, there's a chance you'll get hit with a Curse of Insomnia. This curse does not wear off over time and, unlike regular status effects, can't be cured with milk.

You'll need to follow a clue in the new advancement this pack adds and experiment a bit to find a cure (Floor crafting in a cauldron is required). Just be careful you don't ignore the curse for too long...

Cursed players will be unable to sleep. You can still set your spawn in a bed, but you won't be able to skip the night. Each night, phantoms will manifest in different ways, getting worse as time goes on.

Night 1: You will be unable to sleep. Nothing much will change about your situation other than the strange sounds you hear from the night sky.
Nights 2-4: Regular phantoms will spawn in small groups of 3. These are your standard vanilla phantoms, but they drop a new item called Ectoplasm.
Nights 5+: Phantoms will now spawn in larger groups of 4, and each phantom has a 50% chance of spawning in as a Big Phantom. Big phantoms deal more damage, have more HP, and have a chance at picking up the player and dropping them to deal damage. When killed, they can drop a Phantom Eye.

Phantom Eyes are a new consumable item. When eaten, the player can pull out a random treasure item from their dreams after going to bed, but only if they sleep through the night.

NOTE: Big Phantoms have an optional custom texture, but it's only visible with either Optifine, Entity Texture Features, or any other mod that enabled Optifine's random entity texture features.

Phantom Curse Datapack