Such a quick and fun knit!

Knit as written, but added two rows of purl before starting last inch of 1x1 rib. I had less than 1g of yarn left after binding off. (I used Jenny’s Surprisingly Stretchy Bind-Off, but I think a regular bind-off would be fine too.)

Finished measurements (after blocking): 32 inches around (17 inches straight across the middle when lying flat) and 15 inches deep.

I didn’t do anything fancy when blocking. I lay it out flat and smoothed it to the shape I wanted, giving a little tug to the length. To prevent it from getting edge creases, I rotated it every hour or so for the first few hours (maybe three times).