I was catching pokemon while day to night shift and my background

Spend the perfect day—or evening—with Pokémon during the Solstice Horizons event! – Pokémon GO

Pocket Egg Auto Catch for Go Plus Accessory with Bluetooth 20m Range Long Distance and 3 Months Battery Life : Toys & Games

Have you had any game issues due to being third shift / nocturnal? : r/PokemonSleep

Was Playing scarlet in the background, glanced at my screen and jumped out of my skin! : r/pokemongo

Everything You Need To Know About Critical Catches In Pokemon Go

Let's Talk: The Night Spawns Problem for the Solstice Horizons Event

How To Track Sleep With Pokémon GO Plus+

Pokemon GO: How to Catch Gimmighoul and Evolve It

Catching Pokémon, Pokémon GO Wiki