Such Cute Clothing you simply CANNOT go wrong, the only thing I would ever Improve is also get Cotton Versions made for breathing and better over feeling.
Polyester is Definitely very soft to touch and feels great! Cotton is just more breathable for night :) I sometimes have Night sweats and Polyester makes me really really hot sometimes ;) But I absolutely Love wearing these being Little, Gaming, Watching Cartoons, or Drawing/Painting - Just like Jax ;)