This topper has been great but calling it 4 inches would be a bit deceiving it's really 3 inches and a thicker mattress pad that goes on top of it. Overall ir's nice and has been great.

I love this and so does my 16 yr old dog. Neither one of us gets up stiff and sore. It lets you sink down into it and them forms to the body. It does draw you back to bed/lol

this SERTA foam and pillow top is so GREAT ! I get up with out a back ache and sleep more soundly I can't think of any thing that has helped me like this.

Purchased for my son’s aging mattress. We’ve found that it’s is comfortable and smoothed out some of the inevitable lumpy bits that mattresses with considerable mileage can acquire.

Used it to top my Queen size air mattress for seven months. Only way to sleep on an air mattress, bought from Sam's as well. Now it is on the guest bed in my rebuilt home. Great product, bought one for my sister for her birthday.

It made our stiff Temperpedic bed soft and comfortable. If one person gets out of bed in the middle of the night, it won’t wake the other. Highly recommend.

I purchased this to improve the sleeping surface of our queen sized mattress in our Fifth wheel Travel trailer. It sure made a world of difference! Now I get sleep like I do at home on our bed while away! Easy to install and fit perfectly.

bought this a little over a month ago for the lake house. went on a tempurpedic bed that was really hard. this topper is so comfortable. i would highly recommend it.

I bought this mattress topper to improve an older mattress. However I was not expecting it to bring me so much greater comfort that it has all but eliminated hip and back discomfort as I slept!

Put this on a sleeper couch, Queen mattress, and it made all the difference in the world. Gives plenty of room to stuff back in the couch. Would highly recommend it.