Finally, some pajama pants for adults!
These classic style Sonic the Hedgehog pajama pants are for men or women, and they are adults sizes only. They have an elastic waist band top, with a black tie /cinch thing. The pants are completely covered in all-over squares, each with a classic Sonic face in it. He has probably 3 or 4 different expressions, repeated all over the pants. This makes them fairly busy...but the squares are also fairly large. The background (what little of it there is, is black)
These are likely to be an Amazon item in winter/2020, and it is also likely that Bio World made them.