Good bed. But UGH. The Smell.
935606
Let this thing off-gas before you use it. Take it out of the box and let it air out a few days. I did not do this and the chemical smell from the bed made the small room I was sleeping in stink with a chemical, vinyl, plastic smell. The smell made it difficult to sleep.

Otherwise a very comfortable air mattress. I put a 4-inch memory foam pad on top and it was like sleeping on a Tempurpedic.

It inflates and deflates quickly and the Never-Flat feature was pretty neat.
1373765
I have had my topper for almost a month now. I love it- but I hate that it SMELLS so bad. I put it outside which actually made the smell worse.
It's the best pad for my back or would have sent it back. It is so supportive & very cool to the touch. But the smell is a a killer.
My bedding has absorbed the smell (like wet hay) my jammies stink as do my pillows. I would love for someone to tell
me how to get rid of the smell. I let the topper sit for more than a week in the living room to air out- didn't help.
616551
it was a great bed until I had to wash it.. My dogs brought in the mud, and of course, got all over this.. It says it's washable so I threw in the wash machine.  what came out of a "ball" shaped dog bed.  I tried to stretch it out, and failed. also, the smell it had after washing was unbearable.  I had to throw this away after only 3 weeks of owning it.
1333450
I really like this bed and I think it's a great price. after owning it for a year I believe my side of the bed has formed to the way my body lays and my wifes side to hers. Only down side was the smell from unpacking it. Took a month to completely clear out. Will end up buying another one of these for the spare bedroom.
4961816
Went with the Cali King and the additional size was great!  Took a week or two to break in and get comfortable but I'm happy overall.  The two issues I would warn about is the smell it comes with.  Its kinda chemically based and annoying so you will want to air it out as the directions say.  I left mine in a room with the windows open and fans on it.  It also slips around on the provided platform very easily.  It would be nice if they provided a bracket or something to hold it on there but other than these two, almost negligible factors, the bed is super comfortable, easy to set up, ships fairly quickly, and worth the posted price.  One factor I will post is that since using this bed, I dream EVERY night.  As that didn't happen previously, it's noticeable that I'm reaching that deep of a level of sleep with this bed.
3593411
This mattress smells so bad. Its been airing out since March 5th when it arrived. Its April 9th and it still smells awful. Anyone have any tips to get rid of the smell. Its in our guest bedroom, its so embarrassing having people come over to lay on it.
1240527
We bought this mattress as a replacement for our spring mattress, which was inconvenient. We knew that memory foams have initial odor for a few days, thus we put it to air on our open balcony. I will not use the word "odor" anymore, because it was highly toxic chemical smell, which stayed in the apartment for a few hours after we've put the mattress to the balcony. After a few days of airing the smell was still unbearable. We have contacted the selling company, and they reassured us that the smell will totally go away in about 3 weeks, and that this smell is not dangerous, because they use bio-safe technologies, green tea to remove the smell, American standards, etc. Well, after one month of 24h/day airing, the smell is lower, but it is still there. Both me and my wife are developing headaches after some time sleeping on this mattress, and we have to take it out every day to air. It is interesting to note that the smell is much worse, if it is warm in the room.
Of course, I thought to return it, but I have to pay on the return, and the king size mattress is so big that we can't even take it out of the apartment (in the expanded form), which means to pay a lot. So, we are stuck with that right now.
After all, the convenience of this mattress is questionable too.
274419
Definitely has a chemical smell. Left it outside for a few days and put it on the bed. Still to strong of smell so put it outside for another week and it's tolerable. About a month later smell is gone. Wasn't sure if I liked it at first so I took it off and tried sleeping without it, put it back on the next day. It makes a big improvement to a high end but older bed.
1595829
Works well and went together OK but has a noxous stink to it, noticeable before even opening package and intense after opening.  Still stinks after assembly and discarding packing material.  Should probably be allowed to outgas for a while before packaging by the manufacturer, this thing really smells horrible and is stinking up my home gym.  I am airing out the gym, hoping the smell will disperse.  If it does not go away in a day or so it goes ouside until it is done stinking, it is that bad.
3706375
Update: after 10 days it still stinks.

Amazing bed, at an amazing price. This $200+ memory gel mattress is the same quality as our $3500 one from Costco. I love the bed in a box concept. It makes it convenient to move around and up stairs. My only complaint and the reason I'm giving it 4/5 stars is due to the strong off gassing smell. Hopefully it will air out in a day or two. Got it this morning and immediately opened it up. It expanded to 9 out of the 10 inches within a couple of hours. Hopefully  it will reach its full 10 inches by tomorrow. So far it is really comfortable and has good support. Not too firm but does distribute weight well. I layed on one side and husband on  the other. I did not feel him get up and out of the bed. We will buy another one for our guest room! I will post an update in a week.
2862650
I like it, high quality, but smell is very bad
972332
Like the pillow, but it stinks.....literally.  Smells like a chemical factory.  Not ideal when your nose is about an inch from it all night.
3053436
I got the "Purple" mattress, and, though if seems to function fine, I DEFINITELY DO Notice a continuous smell of "off-gassing" chemicals/solvents.  I'd like to get the "MSDS" sheet info on this material! God only knows what the hell I'm inhaling, 24/7/365 NOW!!!.... WTF?!!!!
3443544
This mattress is a great deal for the price. Fast delivery and easy to set up.

We opened the package and there was a chemical smell. We aired it out for 3 days...fans and open windows and it was still there. Here's what we did:

We removed and immediately washed and air-dryed the cover that came with the mattress. After the mattress aired a few days without the cover, we bought a mostly Polyester zippered mattress protector and wrapped THAT around the mattress first, then re-wrapped it with the washed original cover. Lots of trouble, but really worth not getting sick with headaches and all. It keeps the chemical smell inside the "plastic" cover.
4163563
This is a great bed for the price. I have had it about a week now and I am happy with it. It has a factory smell the first day that you open it but only lasted the first day. Otherwise great value on this mattress.
4430420
This matress is PERFECT except for one problem, the smell. I have had it for a couple of months and it is still noticeable when I am lying down. When I first opened the packaging it was horrible! But i had researched enough to know to expect some chemical smell... except it did not go away. After 3 days I finally put the sheets on and slept on the matress, but took them off every morning before i left for work to let it air out as much as I could. It really is a shame because this matress would be PERFECT! So soft and lovely to sleep on. I hope that Zinus gets this problem worked out because i need a new matress for the guest room and would love to buy another one!
3996697
I want to start by saying I LOVE this mattress. But the odor is awful. I cant even describe it. No amount of febreeze or letting it air is touching it. Its awful. Anytime you lay down its like you just unwrapped it all over again. Im not sure what to do.

Other than the awful smell, I love it. Its very comfortable. Not too firm and not too soft.