I don't have a tumble dryer, and have never felt the need for one, since I hang all my clothes to dry. But I have a pair of cropped skinny jeans that I would like to shrink a bit (width-wise mainly, but if they get a bit shorter that wouldn't be a problem).

I am thinking of trying to shrink them in the washing mashine on a hot wash cycle. Do you think that would work? Has anyone tried that and what were your results? The fabric is mainly cotton with a bit of spandex.
Thank you!