
This cowl uses part of the instructions from the Wurm hat (free on Ravelry), a size 8 needle and approximately 400 yards of worsted weight yarn.
Spincycle Yarns Dream State kit contains 300 yards.
Wurm - https://www.ravelry.com/patterns/library/wurm
Catreading's adaptation - https://www.ravelry.com/projects/CatReading/wurm