ZINUS 12 Inch True Support Hybrid Mattress [New Version], King, Fiberglass Free, Medium Feel, Motion Isolation, Certified Safe Foams & Fabric, Mattress in A Box

Short version: My wife and I have had this mattress for over a year now and can say with confidence that it was an excellent purchase- it is still firm and has no sags or dips. I highly recommend it.I have held off on writing a review for this mattress because I felt it was necessary to sleep on it for an extended period of time to give it the most fair and accurate review. My wife and I purchased this mattress over a year ago, in November 2017.After going to all the local stores, from big box to mom and pop, my wife and I found ourselves with a problem: we could tell which mattresses were soft and which were firm, but aside from that we didn't really feel much difference apart from the price tag- almost all of which exceeded a thousand dollars, with some approaching two grand. That's quite an outlay of cash.So, going off reviews on Amazon we took the leap on this Zinus Extra Firm iCoil 12 inch king mattress. We also purchased a steel foundation upon which to set the mattress in our bed frame. The box arrived a little beat up, but my wife and I muscled it into the house and carried it upstairs together. It's a two person job, but not impossible. We set the rolled up mattress on our guest bed and carefully cut away the plastic so the bed would unroll. (Pro tip: Don't stand between the mattress and the wall. You might get pinched) We followed the directions and let the mattress sit undisturbed for 2 or 3 days so it could fully expand. After which time, we moved it into our bedroom.It's now more than one year on and I feel qualified to report on the mattress. It is firm, but not rock hard. This is obviously subjective, so all I can say is that you know a firm mattress when you lay on one, and this is a firm mattress but is still comfortable. I'm a side and stomach sleeper, and my wife is a back sleeper. I'm 5'11", 230lbs, and we'll just say that my wife is plus sized and leave it at that. The mattress supports both of us fine, and a year later has no depressions, dips, sags or problem areas. The last time I did laundry I snapped some photos of the mattress which I have posted above. You'll notice the mattress is still even and flat, even after a year of nightly use.I purchased this mattress myself, with my own money, have no relationship with the manufacturer, and am receiving nothing in return for writing this review. I just know how difficult it is take the leap of purchasing something like this over the internet, so I thought I'd write a review to help people in a similar situation my wife and I found ourselves in last year.This mattress was an excellent purchase, I've recommended it to friends, and if you're in the market for a fairly priced firm mattress, I can recommend it to you as well. Cheers.

I WAS RELUCTANT AT FIRST! I am going to write an unusual review. When we first took the mattress out of the bed and I lay down on it, my first thought was, "Oh NO! What have I done? This mattress is like laying on a padded brick." It took less then 24 hours for the memory foam to completely fluff up. So I gave it another day. And another. It was just SO FIRM! My old bed was like a soft billowy cloud that just wrapped around you. So I called Amazon to check on their return policy. They told me to wait a week and see how I felt, and then we could initiate the return process.I AM SO GLAD I WAITED! I now LOVE, LOVE, LOVE this bed!! Here's why: I SLEEP LIKE A BABY THAT SLEEPS THROUGH THE NIGHT! I have never slept so good in my whole life! I didn't realize it until about 2 weeks went by. I realized, I'm not getting up at night to briefly check the alarm clock time, go to the bathroom etc. No. It is literally a SLEEP MAGNET! I lie down on it, and 5 minutes later, I'm out cold! No more tossing and turning to fall asleep. NO MORE INSOMNIA! I find I am sleeping about exactly 7 hours straight without waking up once.I don't even notice if my husband is beside me in the bed or not. If he moves, I am not aware at all. Even though I was sleeping great,for two weeks I just couldn't seem to part with our old mattress. I kept having doubts like, "but what if it is just a bit TOO firm? Will I regret tossing our old mattress?" (It was still in our hall. I know I sound like Goldilocks here, but to be absolutely certain we could trash our old mattress once and for all, I took this mattress off, put it in the hall where our old one was, and put the old one back on. The next two nights were the worse sleep nights of my life.Though my old bed is like falling into a fluffy hammock, I realize now that I have not slept hardly at all for years! No telling how many times I wake up at night! So I switched back again to the Zinus mattress. And I also went ahead and shelled out a little bit more money and added an extra layer of padding with a Sleep Innovations 4-Inch Dual Layer Mattress Topper - Gel Memory Foam and Plush Fiber also found on Amazon ($184.10). That made the bed absolutely PERFECT. Very firm support, but a soft topper.If you have bad back issues, or trouble sleeping this bed is for you! It may be a bit of an adjustment at first, but wait a few days, or add just one more layer of foam as we did. In fact at first, my back was just slightly sore, but that's because it was used to being curved like the letter "C" at night. Now every part of my spine is firmly supported, and zero pain anywhere. I am 51 yo, and wake up feeling refreshed. My bed is also on platform risers, and because the bed is perfectly FLAT, it doubles as a workspace (wrapped all our Christmas presents on it). It's easy to fold laundry, etc. because it is firm and perfect height.We both love this bed so much, I hope by next Christmas to replace our Queen size bed in the other bedroom. My 11 yo son loves it too, and now he wishes he could have one too. Conclusion: It may seem to firm at first, but give it a few days. Your body may be readjusting. Now I realize it's the best bed we ever bought! The price is totally reasonable and so convenient having it delivered to your door! PS -- This mattress also has individually wrapped coils, so you don't have to worry about springs going bad and that adds to it's firmness. I think next time, we may try the green tea 10" memory foam only (no springs) as it reviews as being firm, but probably slightly less than this one. Still, I am a converted believer now in this firm bed.Last thoughts: HOTEL OWNERS/MANAGERS should order these beds! With concern over bedbugs etc., stains etc., these beds are so reasonably priced, you could afford to replace mattresses several times a year if necessary. They are perfect on either platform or boxsprings too. Zinus 12 Inch Performance Plus / Extra Firm Spring Mattress, King