I think so too! My mom especially thinks that its part of his personality and finds it adorable.He looks perfectly fine to me. Cats sleep in all sorts of position. My boy sometimes sleeps like he's a contortionist
Your kitty may be used to sleeping on floors before you got him and sleeping on floor keeps them cooler than sleeping on sofa or on a cushion or bed.
As he grows older, his sleeping position and pattern will change, so don't be so worried.