Quoting m o m ♥:" aaah! where did you find that woody outfit?"
The Disney Store online. That one is a mix of a onesie and hat combo and pj bottoms (both were like $11.50). My oldest has a woody pajama set, too. The top of the pajamas look basically the same, but I put the onsie on so it wouldn't ride up when I put him in his car seat.