I purchased these pillows for my husband, who has allergies and asthma and is particular about getting exactly the right pillow to sleep on (they were a gift for my being out of town for an extended period of time). One of my co-workers had purchased one and received it at work, so after getting a good idea of how it would feel and hearing very strong recommendations from others, I gave it a shot. Couldn't be happier. No allergy problems reported by husband, and he really enjoys them. Says they sleep very well. Only issue he had with them was they do have a scent when they first arrive. He let them air out on the back deck and they are fine. He likes them enough that I'm thinking about buying another for me while I'm gone. Because he doesn't wake up with neck, back and arm pain they ware worth the cost. Will be looking for more of these in the future.