This is the perfect mattress topper for an air mattress. Adds a good bit of height and gives the air mattress some cushion. I’ve used it on both an air mattress (loved it) and on top of my regular mattress (not a fan). The foam gets very warm while sleeping when used on regular mattress. It’s comfy but almost too much cushion when used on a regular mattress. If you love a soft squishy bed, highly recommend! If you prefer some firmness, pass on this item.

This is a great topper. It has transformed a way too hard mattress into comfortable softness. My husband who likes a firm mattress doesn't mind this topper, it is not too soft. The topper comes with a washable cover and will require deep pocket sheets.

This is my second time buying this mattress topper - new bed so I needed a different size this time around! I really love it. It made my old mattress a dream to sleep on. Love the combination of foam and pillow top - makes the foam feel less warm. Only issues I've seen after 2 years of use is that the foam has some tears in it and the mattress topper cover has torn out in a few places underneath/pilled. Works well. Obviously, I would buy again...and I did.

I bought this topper in hopes that it would relieve the back discomfort that my Mom had been experiencing every morning while trying to get out of bed for about 5 days. I had to assist her in getting out of bed her pain was so bad. After just one night, the back pain was gone and Mom was able to get out of bed on her own again! Alleluia!

The topper slides a lot with no way to hold it in place. I find my self rearranging it very often. The first night I used it I woke up with back pain but after a few nights my body got used to the topper. It is very cool but it would be nice if it had straps to hold it in place. Not horrible for the price though but I don’t think I would buy again.

I bought this to replace a standard foam mattress topper that we have had for many years. This new topper is extremely comfortable. It feels like we are sleeping on a cloud, although we have a firm mattress. I would recommend the Serta 4” Pillow-Top and Memory Foam Mattress Topper to anyone wanting a really comfortable place to get a great night’s sleep.

I purchased this topper because the mattress I had was causing me to wake every morning with a backache. I decided to go for the 4 inch version to ensure I had the most comfort (even though the 3 inch was on sale.) After the first night of sleep, I woke up without pain. I've slept on this topper for about three weeks and so far, I have no complaints. It really does make the bed more comfortable. Now, a few other things you might want to know. The topper arrived in a cardboard box but it was only wrapped in plastic - the plastic was not completely sealed though which I found odd. The topper did have a bright yellow color on part of it (which some other folks have said looked like urine.) I am not sure why the color is only partly there but having the topper not completely sealed in the plastic bag made me wonder. There is a slight smell once it is opened up, but it dissipated pretty quickly. These things weren't issues for me, but if you tend to be particular, you might want to consider passing on this item. I just wanted a comfortable mattress topper and this fit the bill. (Mine also came with a zippered cover as well.)

This Serta 4" pillow-top foam mattress has completely changed our bed for the better. We have been having a Sleep Number flex bed for 5 years and we never did find our correct number for comfort. My husband stopped sleeping in the bed and I suffer with a bad back. We wanted a bed like the luxury beds at upscale hotels which are soft but give you support. So before buying a new bed I decided to try this out. This pillow-top has given us so much comfort while still being able to use our flex bed. It is very comfortable and feels luxurious. It's perfect for us and we are so happy we bought it. Plus, it saved us at least $4,000 on buying a new bed.

I bought this a few weeks ago and after 3 weeks of sleeping on it, I am happy I purchased this topper. I need a supportive (firm) mattress for my back and for my husband's back. However since we also sleep on our side, we needed something with "give". With the topper on top of our firm innerspring mattress, we get the best of both supportive and comfort.

I bought this one because of the overall great reviews it already had. I also like that it had the pillow top cover with it. My husband and I have been using for about a month and we both agree that it is well worth the money and much cheaper than buying a new mattress.