I bought the original casper pillow a few years ago and loved it! I spoke so highly of it that family members permanently borrowed those pillows. I thought i would bye this foam one as i have neck issues, and find it hard to sleep. I was kind of disappointed. Its pretty stiff, and a little too full. I sleep with my arm under the pillow and with this pillow its too full and isn't comfortable. 
The pillow does stay cool. I wouldn't bye this pillow again.