Despite reading the reviews about these slippers running small, I went on and ordered them in a size 6 (the size I normally order slippers in) because I have quite a narrow and small foot.  I can even fit into some 5 and 5 1/2 size shoes.  So, I figured they'd be just right.  These slippers do run VERY small.  I am sure they will stretch out a bit but I wish I had taken the advice of the other reviewers and ordered one size up.  Beyond the fact that they are a bit snug, they are super cute and very comfy on the inside.  I love that the soles are cushy yet would be resilient for a quick run out to the mailbox.  Definitely worth the price but order a size up for complete comfort.