The Pokemon Company has announced the start date for the Entei Research Event for Pokemon Sleep.

The Entei Research event will run from May 20th 2024 till June 3rd 2024. It will allow players to encounter the Legendary Pokemon Entei on Greengrass Isle, and befriend it using limited Entei Biscuits. After the event period, Entei will still appear in the game, but as a rare encounter.

Check out the full details here:

The Legendary Pokémon Entei appears!

Increased volcanic activity has been reported around a part of Greengrass Isle! Follow-up research in the area around the volcano revealed bits of Entei Mane that Entei left behind.

According to Professor Neroli, he’ll be able to conduct research into Entei’s sleep habits if you collect lots of Entei Mane samples during your sleep research. You can trade these Entei Mane samples via the Event Exchange for new items—Entei Incense and Entei Biscuits—to help you see Entei’s sleep styles!

Event Outline

The Legendary Pokémon Entei will appear during sleep research for the first time, and this two-week event is a special opportunity to concentrate on researching it!

During this event, you can collect samples of Entei Mane to exchange via the Event Exchange for items, such as Entei Incense and Entei Biscuits. You can use Entei Incense to research Entei’s various sleep styles!

Also during this event, you’ll be able to take on two sets of limited-time missions—Week 1 Missions and Week 2 Missions—to earn samples of Entei Mane as rewards!
Week 1 Mission period: Monday, May 20, at 4:00 a.m. to Monday, June 3, at 3:59 a.m.
Week 2 Mission period: Monday, May 27, at 4:00 a.m. to Monday, June 3, at 3:59 a.m.

Event period:
• Monday, May 20, at 4:00 a.m. to Monday, June 3, at 3:59 a.m.

Event area:
• Greengrass Isle

Event Exchange period:
• Monday, May 20, at 4:00 a.m. to Thursday, June 6, at 3:59 a.m.

Bonuses

The following effects will trigger in the applicable area during the event.

— All Days (5/20−6/2) —
• Each time a Fire-type helper Pokémon brings you ingredients during regular helping, it will have one extra.
• The chance of a Fire-type helper Pokémon’s main skill being triggered will be multiplied by 1.5.
• The Snorlax on Greengrass Isle will have Leppa Berries (Fire type) set as one of its favorite Berries.
• A few Pokémon of different sleep types will appear during sleep research regardless of the researcher’s sleep type for that day.
• Certain Pokémon will be more likely to appear during sleep research.

— Week 1 of the Event (5/20−5/26) —
• Main skill levels of Fire-type helper Pokémon will be boosted by 1.

— Week 2 of the Event (5/27−6/2) —
• Main skill levels of Fire-type helper Pokémon will be boosted by 3.

— Second Sunday of the Event (6/2) —
• Drowsy Power will be multiplied by 1.5.

Note: Fire-type helper Pokémon
Charmander, Charmeleon, Charizard, Vulpix, Ninetales, Growlithe, Arcanine, Flareon, Cyndaquil, Quilava, Typhlosion, Entei

Pokémon That Are Easier to Encounter during the Event

During the event, the following Pokémon are more likely to appear!
Slightly Greater Appearance Rate
Charmander, Charmeleon, Charizard, Vulpix, Ninetales, Growlithe, Flareon, Cyndaquil, Quilava, Typhlosion, Entei

What do you think? Let us know in the comments.