Mister Sandman (Fallout 4)

Mister Sandman is a perk in Fallout 4.

Effects
Increased damage from silenced weapons.

The perk is activated the same as in Fallout 3 and Fallout: New Vegas: While in sneak mode you are given the option to either pickpocket or Sandman kill. After selecting Sandman kill, a short killing animation follows. Unlike Fallout 3 and Fallout: New Vegas, no XP is awarded.

Behind the scenes
The name of the perk is in reference to The Chordettes 1954 song "Mr. Sandman". While the perk has existed since Fallout 3, the song itself did not appear in any released game until Fallout 76.