So far so good! Its been 2 weeks and we are pleased. They are serious about the firm part in the title. We ended up putting on a 2 inch topper.

The twin XL is a nice mattress. I don’t care much for the softer side. Your body forms into the mattress and it becomes tough to roll over. The firm side feels great.

Had this mattress now for a few years. The biggest issue is that you sink into the mattress and I makes it hard to move. I understand this is a problem with any foam mattress but this is much worse for older people who may have mobility problems. We also have not noticed much difference flipping the mattress over. So after a few years of use we are going back to the old fashion spring mattress. We would no longer buy a mattress without laying on it first.

This is the best mattress we have ever had. It’s very comfortable. My back isn’t hurting in the middle of the night and we are able to get a good nights rest. And it comes with a 10yr warranty as long as you cover it with a waterproof mattress cover.

We've only slept on our new mattress one night, but it was a wonderful night's sleep. My husband said he slept like a baby. I have problems with arthritis in my hip and usually wake up in pain, I slept through the night with no pain. So glad we purchased this mattress.

I bought this to replace a bed in our spare bedroom and combined with an adjustable base. At first I thought this bed was too hard. We have had a few guests sleep over the past month and I have tried to sleep in the new bed a few more times. I now find the soft side of the mattress very comfortable; combined with the vibrations of the adjustable base, I fall right asleep. It also has a 10 year warranty. Definitely a good purchase.

We bought the Member's Mark adjustable split king base and these mattresses to go along with it. All in, we spent $1k less than all the competition. This is the most comfortable mattress I've experienced thus far. Can't recommend this enough, I'm sure the price will be increased on this thing in the future. $350 is a killer deal.

Great for the price. Only down fall is like other foam mattresses, it gets a little warm

My purchase was wonderful. Arrived before time, bed is comfortable, yet sturdy enough for great support. Thank you Sam's Club for doing exceptional business. I appreciate you!

Have had it for about a month, pretty comfortable and have slept well. My only complaint is that it's not marked which side is firm and which side is less firm, a little hard to tell by just feeling with your hands.