"sleepy"

Hello!
What Spanish word for "sleepy" is to be preferred, when describing an animal (a cat, to be more precise) that is content and about to take a nap?
Soñoliento, adormilado, amodorrado...?

Do they all work equally well?

Thank you very much!

Hello!

If the sentnce says "A sleepy cat"...the spanish word can be "dormilón" or "perezoso".
However, more context will help to understand the word better .

Regards.:D

Hello jec046, thank you for your reply!
It's a title for a painting, so the "sentence" consists solely of two words: "Sleepy Cat".

I'm not sure if one's allowed to post links here, but it's easier to see the context with the image itself, along with the cat's expression.

Hi Micu!!!...so I will say "Gato perezoso" I've seen some paintings with that title.
see you!!!:D

Thanks very much! :)

You are welcome!!!