EDIT: 3 month update.....I'm still leaving it at 5 stars. We have now had this mattress for just over 3 months and still love it. I am falling asleep faster, staying asleep and waking up feeling more rested. I have slept on both sides and even in the middle of the mattress and have equal comfort anywhere. I normally have 3 dogs hogging the bed and what's really nice is I barely notice if they get up and move to a new spot, even if it's right next to me. I no longer feel like my husband is doing backflips if he turns over in the middle of the night either. Even the one night the mattress pad didn't make it into the dryer in time for bed I did notice the difference the mattress pad makes in not making this mattress feel as firm, but it was still quite comfortable, just not as comfortable. I have no complaints. There were no smells with ours to start with so that never was a problem and it's still at a full 12" evenly across. I'm in the camp of those who were really skeptical of buying a mattress online. Especially a foam one since I've had a regular pillow top one for the past 10 years. Yes it was time for a new mattress! I had been shopping around for a new mattress for a few months trying out different ones, getting pricing and trying to make a decision which is kind of a big deal when you're more than likely looking at spending a lot of money. A friend suggested we consider the foam mattresses and that Amazon had some good prices on them. I headed to a local store to give their version of these mattresses a try and I was surprised how comfortable they were. After testing them out I decided to see what Amazon reviews had to say about the ones they offered. I read through the good and the not so good and the flat out bad reviews and decided to take a chance and see what arrived. I am super happy I did! Granted it's only been 2 weeks but so far we love this mattress! I had read the multiple reviews saying theirs didn't inflate correctly, had a foul odor, was lumpy, etc....thankfully none of that was true of what we received. To break it down..... cons... It is a firm mattress no doubt. I am someone who likes to pretty much sleep in a cloud and am a side sleeper so it's taken some getting used to. Since the cost of this mattress was so good I went ahead and ordered a high quality mattress cover/pad and for me it's really helped make adjusting going from a plush pillow top to a firm bed a lot easier. Going from a spring mattress to a foam ones takes some adjustment on the support on the sides. Obviously the spring ones tend to have more of a frame around the edges so sitting on the side of the bed is different. I wouldn't say it's bad but it's not as supportive. We will probably need to get a new bed frame here sometime soon. While the box springs we had from our old king are still in great shape the lighter weight mattress tends to slide and needs to be shoved back into place every night before going to bed. Not really any fault of the mattress it's just a con that I'll need to replace the bed itself in order to stop this from happening. Another con that's not the fault of the mattress it's just my bad luck....I missed where this was on sale just after Thanksgiving because I was still pondering what kind of mattress to get. So I paid the higher, yet still on sale, price. 4 days later it went back on sale again and has remained $40 cheaper for over a week now. Bummer for me, but still a good deal, just not as good of a deal as if I'd waited 4 more days to decide. On to the good stuff Pros..... Per my experience I say buy this mattress. Don't wait, grab it at the price it is now. I did not notice any sort of foul odor but I did open the windows and had the ceiling fan going while it inflated. It inflated to the full 12" and did so within an hour. We were sleeping on the mattress withing 4 hours of setting it up. It fit where our old king size was perfectly with no overhang or shortages size wise. It's around 2" taller than our old mattress so that took a little getting used to but it measured 12" with a regular school ruler. It was well packaged and fully deflated ready to go when it arrived. I'm a big girl and my husband is a fairly big guy and we both sleep comfortably on this mattress with our 3 large breed bed hogging dogs. When my husband moves at night he does so like a fish out of water and I have noticed he doesn't wake me up turning over because it's not bouncing me around like our old mattress did. I don't even really notice a dog moving around to a different spot. I'm a side sleeper who would love to sleep in a cloud so this did take some getting used to but it's never been uncomfortable. The first night getting to sleep and finding a comfortable position took a little bit but I could instantly feel I was better supported and my hip and shoulder didn't have the pressure it normally would. When I turned onto my back I felt almost like I was sleeping in a hammock. Not totally of course but the extra support was there where it hadn't been before. With what I saved on the mattress I went ahead and bought a nice mattress pad/cover to put on top to make it a little more soft. I had always been told you can make a firm mattress more soft but you can't make a soft mattress more firm so if it's too firm invest in a good pad and it can make a lot of difference if you prefer a softer bed. What I noticed right away is when I woke up I wasn't as sore. I feel a lot more rested in the morning and I'm not waking up to turn over or move around near as much as I was. Granted our old mattress was 10 years old and that had a lot to do with it, but still this mattress is obviously better and keeps me in a deep sleep for longer periods throughout the night. My husband also says he's sleeping better and isn't flopping around like he had been doing with the old mattress. He's the one of us always complaining about being hot while sleeping and he said he hasn't noticed this mattress makes that any worse, and if anything since he's not moving around so much it's better. We like it so much we plan to order the 8" version for our kid's bunk bed here soon. As we get more use of out this I will try to update this review for how it's holding up. I don't expect to get 10 years out of it, granted i probably shouldn't have tried to get 10 years out of the older one but it held up for at least 8-9 of those years. For this price I'd be happy if it lasts a couple of years. If it lasts longer even better. I highly suggest if this is too firm for you to buy a nice mattress pad and to buy it while it's at the price it is now.

HERE IS ONE OF THE MOST IN DETAIL BRUTALLY HONEST REVIEWS YOU WILL READ. I'm a 16 y/o girl who bought this mattress for my room makeover. The price is totally unbeatable and I thought well, I'll just go for it. Here's my full breakdown and opinion on anything you could worry about for a mattress: THE COMFORT LEVEL: 10/10 I may be 16 years old, but I have bad scoliosis that affects my whole body. So I still get knee pain, all that fun stuff. Before I had opened the box and set up this mattress, I had also gotten into a bad car accident that hurt my lower back even more to the point I couldn't walk. At this point in my life, comfort is my holy grail. As a growing teenager, I needed to count on something that I could also sleep on for 12 hours and wake up feeling like I could take on the world! And this my friends, THIS is it! The comfort is amazing. My back doesn't hurt at all when sleeping on it to this day, even compared to my previous expensive serta mattress. I know a lot of people worry about it sinking over time. I weigh 105lbs but there are absolutely no signs of sinking no matter how long I lay on this bed. Also, it isn't super squishy. The perfect amount of plush with a hint of firm so you aren't sinking to the pits of memory foam. THE SIZE: 10/10 When I cracked this baby open, it immediately popped up. I didn't even wait the full 24 hours before laying on it because it immediately grew to it size! I even measured the corners! HECK YEA! CLEANING IT: 9/10 Don't know what the fake zipper is about on this mattress, but this baby is so easy to clean. MY SISTER POURED CRANBERRY JUICE ALL OVER MY MATTRESS! And as I was cursing her out and shaking my fists to the heavens asking "Why me!", sad that my brand new mattress could potentially be soiled forever, it was all okay after I grabbed some odoban!! I cleaned that sucker to the gods and now there is not a single stain!! Make sure you dab people and HARD! You can even rub it, it'll come out. And then I did what a smart human would do, put a mattress cover on. THINGS THAT BOTHERED ME: 1. I don't know if it is just me but....PREPARE FOR THE SMELL! It doesn't smell like green tea nooooo definitely not sis. This smells exotic. Not my favorite smell it was definitely a strange smell that I can't even identify. BUT THAT SMELT WEIRD! And I'll be honest...it took 3 weeks for me to not smell it. It was such a strong smell that I just made my bed and didn't sleep on it for a while. It made my sheets smell too at one point. Then I got used to the smell and just decided to kick it in my bed because I was tired of sleeping on the couch as soon as the smell died down. But by the next month, I no longer smelt it. I'll list below how I managed to get rid of the smell. BUT! If you are patient like me and are willing to pull through because it is a TOTAL pain in the butt to send a mattress back, then don't fret! It does go away and you will love the mattress after! Its been 3 months that I've had it and I've had multiple people do a smell test, the smell has vanished. I still think the mattress is worth it! HOW TO REMOVE THE SMELL: -Don't use too much febreeze. It'll be a temporary assistant, but honey it isn't worth it to drench the bed in more chemicals making the bed come up with more of a foreign smell. -I put scent soaking rocks in my room. You can buy these at home depot, they take away any weird scents. You can also purchase a air cleansing machine, NOT a dehumidifier. I don't know exactly what these things are called but my boss has one and they work great. You can get these for cheap at walmart. -Air fresheners for the car. A canned air freshener will definitely get rid of the smell but they are very strong. I just got some plain smelling glade air fresheners and put them under my mattress. This made my mattress smell like fresh linen by the second day. -Wait that sucker out! It's not too bad! 2. The heat, at first My mom just looooooooves to keep our house at 69 degrees making me a living ice cube. Therefore, I keep my vents closed. But, this bed will get you pretty hot sometimes. It could just be because of my comforter, but I never sweat and sometimes I will wake up sweating on this bed. This isn't an extremely justifiable complaint because it could be any other factor, but rest assured my vents are open fully because I do not want to smell like sweat! OVERALL.....This is a definite cop, not drop! Go ahead and buy this bed. If you are extremely picky, this bed is great to have in a guest room or maybe if you own airbnb's. They're cheap and comfortable and great as long as it air's out. I love my bed so much to a point that I don't wake up for days now!

I am beyond impressed with the ZINUS 5 Inch Green Tea Memory Foam Mattress! The medium-firm feel is perfect—supportive yet comfortable. The zoned pressure relief works wonders, especially for a restful night’s sleep. I love that it’s fiberglass-free and made with certified safe materials, giving me complete peace of mind. It arrived neatly in a box and expanded quickly with no odd smells. Highly recommend for anyone seeking quality, comfort, and safety at an amazing value!

very comfortable works well with our new adjustable bed priced very well

I was a little leary when this arrived thinking how can it be so light and box so small. Also it was very affordable. Then I opened it and set it up on the bed. It started to decompress immediately. I laid on it and oh my god! It was soooooo comfortable! That night was one of the best sleeps I've had in years. The next day I stayed in bed for quite some time because of how comfortable I was. The mattress caressed my entire body and released pressure. 10000% recommend this product.

We purchased a new RV with a Murphy bed and we were completely underwhelmed by the stock bed it came with. We ended up purchasing this one to replace it. It is comfortable for sleeping and we get a good night's rest. It also goes up into the Murphy bed wall correctly and doesn't strain the metal lock mechanism in the trailer. This completely replaced the old mattress and is not used as a topper. We are very happy with the purchase. If you are using it for the same reason we were then don't hesitate.

I had bought a $2000.00 mattress from Sleep Country which was the biggest mistake of my life. I think it actually messed up my back. I tried to have them replace it, but honestly in the end it wasn't worth the battle. Had that POS for 3 years. We bought the full size of the Zinus for our guest room bed and loved it! Man the comfort level was amazing. So I decided to buy the king size, and am so happy I did. My wife and I are actually sleeping better, and my back isn't as bad as it's been. Not to mention I'm not up and down all night anymore either, so that tells me that this was well worth the purchase and is good value!! Love it, and highly recommend it to those out there who think these mattresses aren't comfortable or supportive for your body.

Received order on schedule. Loved the cute instruction manual (very creative letter from your mattress). Let it sit for 72 hours even though it was full size before 24 hours. Had my first sleep last night. It was so comfortable especially combined with my new memory foam pillow! I would say this is a medium firmness. You definitely sink in to the mattress, but it is firm enough for support and it is my first morning without body pain in months. To be fair my old mattress was super old. None the less I'm very please with the awesome sleep I had on a mattress that was less than $300!!