A purple-furry cat. A triangle nose and triangle cat ears.. He has a round purple body and a yellow hanging sharp moon icon!
His Scent Is Lavender and he loves to make People Sleep for a long time.

He is one of the Smiling Critters in Playtime Co but got banned because kids were having nightmares around Catnap, the cat plush. 
(From Poppy Playtime Chapter 3)

A strange Red Sleeping Gas comes out of his black mouth and makes people fall into a deep sleep.

He has a very long purple tail