Yumemin resembles a light-orange night-cap with a purple sleep-mask, pinky-red slipper-like feet and white marking. He also has lilac markings on his feet and a pastel-blue bubble attatched to his nose.
For his Bugmin ego, see: Bug-Yumemin
As a Bugmin, the bubble that's attatched to his nose is coloured green instead of pastel-blue.
Yumemin is a Promin sleepy personality but he's very good at changing the scenarios in other people's dreams. When Yumemin makes a noise, he says 'Yume' or 'Oyasumi'.
In the series
Yumemin first appeared as a Bugmin in episode 13. He was messing up Wanda's dream, preventing him from reaching the loo. Yuto captures and debugs Bug-Yumemin with help from Wanda and the two Promins Turbomin and Tonkmin. Yumemin was later summoned by Yuto in order to see what's going on in Turbomin's dream.
Yumemin was summoned again in episode 19 just to make Jii Yoda fall asleep.
- Yumemin is one of the Promins whose eyes can't be seen. The other one being Slowmin.
- Yumemin is the third Promin to be encountered as a Bugmin outside of Kirakira First Street. He was encountered in Wanda's dream-world.
- Yumemin is the third Promin to be captured and debugged as a Bugmin by Yuto outside of Kirakira First Street.
- Yumemin is the last Promin to be featured in the 'Kamiwaza Promin-Zu' segments. He was featured in episode 47.
- Yumemin resembles a night-cap.
- Yumemin's name comes from the word 'yume' meaning 'dream' in Japanese.