The Pokémon Sleep region is divided into research areas, each inhabited by a Snorlax and its own Pokémon. You pick one at the start of each week. Here are the nine areas, including two in Expert Mode, based on Poképédia.
| No. | Area | Feature | Unlock |
|---|---|---|---|
| 1 | Greengrass Isle | The largest, the most varied | Start of the game |
| 2 | Cyan Beach | Many Water-type Pokémon | 20 sleep styles observed |
| 3 | Taupe Hollow | Ground- and Rock-type Pokémon | 70 sleep styles |
| 4 | Snowdrop Tundra | Ice-type Pokémon | 150 sleep styles |
| 5 | Lapis Lakeside | Dragon-type Pokémon | 240 sleep styles |
| 6 | Old Gold Power Plant | Electric-type Pokémon | 340 sleep styles |
| 7 | Amber Canyon | Dragon- and Bug-type Pokémon | 450 sleep styles |
| Expert 1 | Greengrass Isle, Expert Mode | Harder, better rewarded | Master Rank 18 on Greengrass Isle |
| Expert 2 | Cyan Beach, Expert Mode | Harder, better rewarded | Master Rank 18 on Cyan Beach and Greengrass Isle |
The weekly rules
- Once you have chosen an area, you can’t change it until the following week, unless you use a ticket; changing resets the week’s Drowsy Power and missions.
- Each full week on an island increases its area bonus by 5%.
- The “Research Status” screen shows the share of sleep styles observed, Pokémon recruited and the recommended team strength.
