We have been sleeping on our king size TEMPUR-Adapt® Medium for about 3 weeks and we love it. We have been married for almost 50 years and this is the most comfortable mattress we have ever owned. I wish we had bought it years ago. We also have the cooling pillows and they are wonderful too. I am sleeping better and awake without back pain. The firmness is just right! Not too hard, not too soft. I no longer wake up because my hips or back is hurting from the pressure. Just try it and you will love it too.