The Slumbering Sands event has begun in Pokémon Go, and with it, several Timed Research opportunities for you to work through. The most important one, however, involves using another application, Pokémon Sleep, with the Pokémon Go Plus+ item.

For those who have the Pokémon Go Plus+ item and are willing to download Pokémon Sleep, they can unlock several unique Pokémon. The biggest is the sleeping cap-wearing Snorlax, who can appear in his Shiny version. It’s a distinct costume that Pokémon players have been eager to add to their collection, but the Pokémon Go Plus+ item may be holding many back from getting it. If you have this item, be sure to download Pokémon Sleep to join this quest.

The only way to work on these various tasks is to download Pokémon Sleep and log your sleep for at least one day. You’ll also need the Pokémon Go Plus+ item, an exclusive watch that can be used to make catching and playing Pokémon Go a lot easier. For many, an item in the $74.99 price range is a steep price to pay for a premium Timed Research event. It’s the only way to catch a Snorlax while wearing a sleep cap, but more opportunities for players with the item are always welcome.

You will need to complete these tasks and the rewards you will receive for completing them. The first task requires you to log your sleep for one day in Pokémon Sleep. After you have done this, the other tasks should become available in Pokémon Go.