Staff of the Slumberkeeper

Staff, very rare (requires attunement by a spellcaster)

This slender staff is topped with a crescent moon and swirling hourglass. Strange, blue sand endlessly falls through the glass. While the staff is on your person, you have resistance to psychic damage, and you can't be surprised as a result of being asleep while you're attuned to the staff.

Spells. The staff has 10 charges and regains 1d6 + 4 expended charges daily at dusk. While holding it, you can cast one of the following spells from it, using your spell save DC and the spell's normal casting time: dream (5 charges), fear (3 charges), modify memory (5 charges), phantasmal killer (4 charges), sleep (1 charge per spell level), or suggestion (2 charges). If you expend the last charge from the staff, roll a d20. On a 1, the staff is destroyed, vanishing in a plume of dreamlike smoke.

Dream Guardian. Friendly creatures within 60 feet of the staff can't be harmed by the dream spell, or be unwillingly put to sleep by magic.

Eternal Slumber. When a friendly creature that you can see within 60 feet of you drops to 0 hit points or fails a death saving throw, you can use your reaction to magically shunt its body into a special demiplane contained within the staff. The creature is shunted immediately after dropping to 0 hit points or failing the death save, suffering no further effects; it is unconscious but stable while within the demiplane. Time stands still within the demiplane. While the creature remains there, the staff can be targeted by the greater restoration spell; casting the spell on the staff returns the creature within it to consciousness with 1 hit point in the nearest unoccupied space to the staff. The effect lasts for 10 days; it ends early if this property is used again or if the staff is destroyed. When the effect ends, the first creature reappears in the nearest unoccupied space. Once this property of the staff has been used, it can't be used again until the next dusk.

The forest heaved a relaxed sigh. The tension that held the boughs so rigidly eased, and the forest, and Tolemue herself, could rest easy.