First I bought two pillows before the acquisition of 4 others. I wanted to test before making the fee for 6 pieces. I can only recommend this product, it is very nice, well-inflated. I had to sleep with two pillows on one another before knowing that. My neck no longer hurt me in the morning when I woke up. My husband also loved it. So I decide to buy additional 4 for children. A strongly advise even if eventually it loses some of its volume since no pillow remains inflated for life, we have to change from time to time.