I ordered 2 extra firm pillows (I am a side sleeper). I received 2 pillows but one is clearly much less firm than the other. Both had packaging marked "extra firm" but I don't think both are. I thought about returning one, but decided to keep it and try them both out. After several weeks, I wish I had returned the less firm one - it's okay for sleeping on back, but not for side sleeping. Both have lost their initial firmness in just a few weeks.