How do I refill my PP?

Sleeping in a hotel seems to refill my HP but not my PP. How do I refill my PP? Do I have to sleep in a certain place or use a certain item?

earthbound

Pictures about "How do I refill my PP?"

Sleeping will always restore you PP. ...

Touching a magic butterfly will restore 20pp to every character. ...

Consuming certain items such as PSI caramels (limited in supply) or Brain Food Lunches (sold towards the end of the game).

Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.