There are many synonyms for the phrase "sleepy kitty." Some options for similar phrases could include "dozing feline," "slumbering cat," or "drowsy kitten." Alternatively, the phrase could be swapped out for different descriptions of a cat's sleepiness, such as "snoozing tabby," "dreaming furball," or "cat napping." Depending on the context, other creative options could include "nap-prone puss," "sleep-deprived kitty," or "siesta-loving feline." No matter the phrasing, all of these synonyms capture the adorable and peaceful state of a cat who is deep in restful slumber.