What is this kid's book(missing sun)?

I haven’t seen it in about 20 years, but this is what I remember about it:

There is a group of animals and one day they notice the sun doesn’t rise so they go searching for it. Eventually they find it locked away in its house, sad or ashamed because it can’t shine anymore. The animals give the sun a bath/polish so it can shine and it goes out to shine happily again.

I remember the illustrations were really simple but endearing. I’d like to get this book for my kids(who are probably too old to appreciate it) AND for me. I searched as much as I could but never came up with the right book. Thanks in advance.