Really great mattress topper! I’ve been using it for four months now and have some thoughts to share. I have a very firm mattress (Hypnos), it is extremely hard and I found it to be uncomfortable when sleeping in one position for a while, so found I kept waking up in the night to turn over. I also have a lower back injury which the firm mattress would make worse. However due to the injury I did not want a soft mattress, nor did I want to purchase a whole new mattress. This topper is amazing! It makes my bed so comfortable, not too soft. Since my mattress is so hard, the topper makes it a perfect firmness. My back has felt much better - which was a concern of mine, and I have such great nights sleeps now, I’m not waking up constantly and it’s hard to leave my bed in the mornings! Best purchase I ever made, if you have a hard mattress that needs softening, definitely go for it. The topper itself is quite soft so bare that in mind if your mattress is on the softer side