| Pokedex Entries: |
| Red | Puts enemies to sleep then eats their dreams. Occasionally gets sick from eating bad dreams. |
| Blue |
| Yellow | If you sleep by it all the time, it will sometimes show you dreams it has eaten in the past. |
| Gold | If you think that you had a good dream, but you can't remember it, a DROWZEE has probably eaten it. |
| Silver | It remembers dream it eats. It rarely eats the dreams of adults because children's are much tastier. |
| Crystal | When it twitches its nose, it can tell where someone is sleeping and what that person is dreaming about. |
| Ruby | If your nose becomes itchy while you are sleeping, it's a sure sign that one of these POKéMON is standing above your pillow and trying to eat your dream through your nostrils. |
| Sapphire |
| Emerald | If your nose becomes itchy while you are sleeping, it's a sure sign that a DROWZEE is standing above your pillow and trying to eat your dream through your nostrils. |
| FireRed | A descendent of the legendary animal baku, which is said to eat dreams. It is skilled at hypnotism. |
| LeafGreen | Puts enemies to sleep then eats their dreams. Occasionally gets sick from eating bad dreams. |
| Diamond | It can tell what people are dreaming by sniffing with its big nose. It loves fun dreams. |
| Pearl |
| Stadium 1 | It puts its enemy to sleep and eats the victim's dreams. Said to have descended from the legendary beast, Baku. |
| Stadium 2 | If you think that you had a good dream, but you can't remember it, a DROWZEE has probably eaten it. |
| TCG | Drowzee: Not popular with girls because of its attitude. Can often be heard muttering to itself in a low voice. |