A schedule change for Pokémon Sleep’s Mythical Pokémon. With update 3.9.0, rolled out on Thursday, October 22, 
Mew leaves New Moon Day for Good Sleep Day, whose next edition starts on October 25. The update also sets the stage for a delicious November, with a new ingredient and three new dishes.
Mew moves to the full moon, Darkrai keeps the new moon
Until now, Mew and 
Darkrai shared New Moon Day. From this version on, each Mythical Pokémon has its own event: Darkrai stays true to the new moon, while Mew shows up during Good Sleep Day, held every month around the full moon.
This edition will run from Sunday, October 25 at 4:00 a.m. to Wednesday, October 28 at 3:59 a.m., local time. During these three days, Mew has a special appearance rate in all research areas, while 
Cleffa, 
Clefairy et 
Clefable appear more often:
- full moon night (October 26) : Drowsy Power multiplied by 4, sleep EXP tripled and 1,000 bonus Sleep Points;
- the day before and the day after (October 25 and 27) : Drowsy Power multiplied by 1.5, sleep EXP doubled and 500 bonus Sleep Points;
- throughout the event : sleep styles not yet registered in the Sleep Style Dex appear more easily.
As with Darkrai, only one Pokémon with a special rate can appear during the first sleep research of the day. Each missed encounter increases the chance of meeting it in the following ones.
A new ingredient and three dishes in November
The update also lays the groundwork for the coming weeks. It already adds a more practical display of the recipe list: a dish you have never cooked now shows the ingredients and quantities needed, with a filter by number of ingredients. 
Gengar also gets a better chance of finding ingredients as a helper Pokémon.
November’s schedule:
- November 8 : a new Sleep Style Dex goal, at 570 sleep styles, makes it possible to enlarge the pot even further;
- November 9 to 16 : a meal prep week, with more Pokémon gathering the ingredients for the new recipes;
- November 15 : arrival of a new ingredient, a variety of nut, and of three dishes that use it, requiring 39, 91 and 121 ingredients;
- November 16 to 23 : a feast week, with ingredient bonuses, a bigger pot and new dish requests from
Snorlax.
This update also prepares a Halloween event with doubled Candy: its dates will be announced in the app.
Before the maintenance
A maintenance accompanies the rollout of version 3.9.0 on the morning of Thursday, October 22, Paris time. If you are sleeping during this period, start your sleep tracking from the maintenance screen before installing the update, so you do not lose your night.
Key takeaways
For Mew hunters, mark October 25 to 28 on your calendar: take care of your nights and use your Incense during Good Sleep Day. To prepare for what comes next, our beginner’s guide to Pokémon Sleep covers all the basics of cooking and research areas.
Sources: official announcements from the Pokémon Sleep app (pokemonsleep.net), cross-checked by Serebii and Pokémon GO Hub
