If you're trying to figure out what size to get - Think first about the pillow cases. Bean has no pillow cases (you know, the kind you can take off and wash whenever you want) for this pillow. Their "cases" - which I highly recommend you get - are actually protective outer cases with a zipper, and are extremely difficult to get on and off the pillow. You aren't going to want to wash the case once a week. What you need (and which Bean does not sell) are the normal pillow cases that slip over these protective zipper cases. It is extremely difficult to find pillow cases for a 66-inch body pillow. If I could do this again, I'd buy the 4.5 foot pillow - This is a standard length for any body pillowcase you can find in a store (54 inches). I have the longer one, which is a great pillow, but I had to buy two 54 inch pillow cases and put one inside the other to cover the pillow.