I seen ai say it has mutiple variation of the same topic so not sure which one you read exactly

From a little bit of Google and reddit I found that the book might be "The Slow Mouse" by Clive King as far as I can see it matches the books story that you said in the post so far

Are you okay if I may ask sorry if this seems werid lol

Maybe jirachi or the astro bot guy

What the big baby slep doing

Aw they are cute and messy

Hey there kitty pets her