You have resistance to psychic damage and you can't be put to sleep by magic while you hold this beaded staff.

The staff has 10 charges. While holding it, you can use an action to expend 1 or more of its charges to cast one of the following spells from it, using your spell save DC: catnap (3 charges), dream (4 charges), silence (2 charges), or sleep (1 charge). You can increase the spell slot level of sleep by one for each additional charge you expend, to a maximum of 5th-level.

The staff regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff vanishes and is destroyed. You must succeed on a DC 20 Intelligence saving throw or else you forget that the staff ever existed, recalling it only in your dreams.

Notes: Resistance: Psychic, Immunity: Magical Sleep, Bard, Druid, Sorcerer, Warlock, or Wizard, Control, Debuff, Combat, Deception, Warding