Maybe it did not "inflate" all the way, but much smaller than a regular body pillow. I will probably have to find special custom sized pillow cases for it.  

Update: My husband used it once, the foam separated where he had his knee all night and has not "re-inflated" as memory foam is supposed to do. Now a permanent gaping dent in the middle of the pillow and mostly useless. 

Pros: Arrived quicker than expected
Cons: Useless