We had a Cal King airbed also from Sam's but this airbed did not worked for us. We replaced it with this Cal King 13" Night Therapy Gel Memory Foam made by Zinus and we couldn't be happier. This bed supports my back, waking up in the morning with very little or no pain. My wife loved it as well. We have exactly the same bed in a queen size for about 3 years that we slept from time to time and we were always delighted so we decided to get rid of the airbed and we're glad we did. This 13" Night Therapy Gel Memory Foam bed is very much appreciated!

Promptly delivered. Box was destroyed but mattress was not damaged. Unlike others reviewing here, I did not notice any unpleasant off gassing as the mattress aired out and slept on it the first night. Mattress is very soft for the first few inches but very supportive. I am a big guy- 240 lbs who sleeps on my stomach, back and side. I have slept great, but my wife is having problems sleeping on her stomach. We are both sore from moving and working on the house, so it is hard to tell how well it really sleeps. So far, so good. A friend bought a mattress from Sams that had over 600 positive reviews, and he loves it. That mattress is no longer available, but this is the top mattress available. Hopefully it is just as good, and we will be just as happy in the long run.

I feel the same as the other reviewers when asking myself why did we wait so long? We shopped at stores and considered investing in a $3,000 mattress. I wasn't too excited. Then I come across this and couldn't help but try. Well what do you know. This thing is awesome. Some reviews make it seem like its as hard as concrete or something when TRULY this is soft to the touch but gives you plenty of support. It feels the EXACT SAME as the box store beds that costs 7-8 times the same amount. Just trust me and try it. You can always return it to the store if you hate it....but you wont. :) Very satisfied.

I love this bed. It is comfy and has helped a great deal with my fibromyalgia pain and hip pain. I no longer wake up to not being able to feel my legs. It is also good for someone like me who is a stomach sleeper and doesn't use a pillow. I also don't get hot from this bed which is nice. I don't recommend putting a mattress protector on cause that does make you hot. I'd like to replace my kids beds with this one. highly recommended!

We love this mattress. We have used a memory foam mattress for years and was time to replace it. Took a couple of days to get use to the difference from our old one, but sleeping like a baby now! My husband has back pain all the time, but in this bed he can sleep without hurting.

Had the mattress for eight months now. Felt great for the first few days, but I’m only 170pounds and the longer we have it the deeper in the mattress I seem to be sinking. Not all of me sinks though. Just around my hip area seems to sink the most so my legs and my half of my torso are higher, causing a great deal of pain in my back.

We love these mattresses. We first bought a king size a year or more ago and had it delivered right to the house. THAT (delivery) was worth it. Then, since we were so happy with it we bought a queen size for my sons room and just purchased 3 twin size for spare bedrooms. It's super soft and comfortable and we don't get hot in the humid summers here in Michigan thanks to the gel top. We just unpacked them and they popped into shape pretty quick. I have a bad lower back and most beds agitate it--since sleeping on this I have had no issues. Soft yet firm enough for me. Also, when my husband rolls over or gets in or out of bed you don't even feel it. Prior to this we purchased one off the shelf (can't remember which brand) in a box and it never rolled out right and we had to take it back (that was a huge hassle--had to borrow a truck etc) to Sams Club. I'm glad we took a deep breath and waiting for shipping (didn't take long at all) on these. We couldn't set the beds up that day--but it was worth waiting a week or so. For the twins we also bought the metal platform style frames. Super easy to set up and move the beds around.

Bought this with hope in my heart that it would be a good purchase. I am very pleasantly surpised at what a great product this is. HINT: If your used to an innerspring mattress it will take a minute to get used to a foam based mattress but when you do you'll never want to go back to innerspring. Sams seems the only place to get the 13 inch model and I firmly recommend this to anyone in the market for a new mattress. As far a sleep , it's great. I sleep on this mattress as well as I've slept on any mattress in my life. Also I have hip pain when sleeping on other innerspring mattresses rated "hard" but no pain at all on this one. YEAH! Finally I paired this mattrus with the ZINUS platform bed sold elswhere for a total KING size bed solution under 800.00. How awesome is that!

I bought this mattress and was not sure buying it on line and not seeing it first, I sleep so well at night or when I take a nap. My son has a bad back and will sleep on thin mattress and does not toss and turn all night long like he will on his regular one. I feel rested when I get up.

I've waited a couple months to write this review so that I had time to get used to it in case there were any changes. I'm happy to report this mattress has been amazing! I am pregnant and in my third trimester and the support has made my nights so much more comfortable and the king size makes shifting easier as well. The king size is also great for when two little ones climb into bed with us in the morning. My husband likes more firm and I like softer beds so we tried this one based on the reviews and we are both happy! We didn't buy the box spring and instead went for a basic frame. With the frame, the bed is at about a 25' height which, for us of average height, is fine. SHEETS: wow, this was more difficult to figure out then expected. I went with sheets that fit 15 and 16' mattresses and they both fit well. I have not put a mattress cover or pad on so that is the fit without anything extra. The only small thing we are noticing with the transition to a memory foam bed is that it seems a little hot. This mattress is the gel infused MF so it should have more air flow but we are still noticing that. It's nothing we can't handle with less covers though. I hope this review helps because reading reviews helped me decide on this bed because the price is great and the bed is fantastic!