With the Pokémon Sleep app, just press and hold the central button on the Pokémon GO Plus + accessory and place it by your pillow. There’s a Pikachu within your Pokémon GO Plus + that can sing you lullabies and act as your morning alarm; Pikachu grows friendlier the more you sleep, unlocking even more sounds!
With Pokémon GO, use this accessory to spin PokéStops or throw Poké Balls automatically (and Great Balls and Ultra Balls too!). You can catch Pokémon without even pressing a button! Linking the Pokémon GO Plus + with Pokémon GO will also let you take on Special Research to catch a Snorlax with a nightcap.