This mattress is everything I hoped it would be! I am 61 years old, 150 pounds and 6 feet tall. I have some health issues that require me to be able to raise my head and feet. I also have joint issues. This mattress is so comfortable! I especially love that the sides are firm and that the mattress is extremely comfortable in any position! I'm sleeping so much better than my previous mattress wedge pillow and regular pillows! The only thing I would mention is that if you are tall like me, your feet come to the very edge of the mattress when the head is elevated. We preferred the split king to the California split king for the width.