To go along with the Good Sleep Day event beginning at 4:00 a.m. on Tuesday, April 23rd, 2024, the Good Sleep Day Bundle Vol. 9 will be available for purchase and is packed with items to further boost the effects of the event!

Good Sleep Day Bundle Vol. 9

To go along with the Good Sleep Day event that begins at 4:00 a.m. on Tuesday, April 23, Good Sleep Day Bundle Vol. 9—packed with items to further boost the effects of the event—will be available!

Bundle Details:

Good Sleep Day Bundle Vol. 9 (1,500 diamonds)
• Growth Incense ×2
• Luck Incense ×2
• Focus Incense ×2
• Great Biscuit ×9

Focus Incense is an item that doubles the research EXP gained during sleep research. Give it a try when you’d like to raise your research rank.
Note: By raising your research rank, you can unlock your helper Pokémon’s max level limits.

Growth Incense is an item that doubles the EXP gained by your helper Pokémon during sleep research. Give it a try when you’d like to raise your helper Pokémon. If you use this incense during the Good Sleep Day event, the effects of the incense and the effects of the event will stack, and your Pokémon will receive four times the usual amount of EXP (or six times the usual amount on the night of the full moon).

Up to two types of incense can be set for a single sleep session. The three-day Good Sleep Day event is a good opportunity to use some incense!

Source: https://www.pokemonsleep.net/en/news/5469/