We purchased a king Medium Adapt Hybrid and my life has completely changed. I was very skeptical about investing this much into a mattress, and a king size at that. But my partner, who is 6'4, convinced me. After just the first night we saw a huge difference. Our schedules are very different so normally when one wakes up the other would by default of the movement...not anymore! We both sleep soundly through the night and fall asleep faster. We also have noticed a significant reduction in neck and shoulder pain since switching to tempur-pedic. We are customers for life!