![Zinus 12 Inch Green Tea Cooling Memory Foam Mattress [New Version], King, Fiberglass Free, Medium Firmness, Cooling Gel Foam, Certified Safe Foams & Fabric, Mattress in A Box](https://m.media-amazon.com/images/I/21x7T1PeZsL.jpg)






















❄️ Sleep smart, stay cool, and join the eco-conscious comfort revolution!
The Zinus 12 Inch Green Tea Cooling Memory Foam Mattress combines medium-firm, gel-infused memory foam with natural green tea and charcoal infusions to deliver a cool, fresh, and pressure-relieving sleep experience. Certified safe with CertiPUR-US foams and OEKO-TEX fabric, it ships compactly to reduce environmental impact and comes with a 10-year warranty, making it a smart, sustainable choice for healthier, more comfortable nights.








| ASIN | B0CKYXPC4Z |
| Age Range Description | Adult |
| Best Sellers Rank | #5,227 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #21 in Mattresses |
| Customer Reviews | 4.3 4.3 out of 5 stars (52,520) |
| Date First Available | October 13, 2023 |
| Item Weight | 78 pounds |
| Item model number | ZU-MFGN1YZI-12K |
| Product Dimensions | 80 x 76 x 12 inches |
C**E
Well worth the effort... AWESOME CUSTOMER SERVICE
Let me start off by saying that it has been a rollercoaster ride with this mattress. Okay, so why the 5 stars, you ask? Well, I will tell you why. When it arrived, everything was great. It was packaged well. Vacuumed sealed so tight I didn't think it would ever unroll right. I gave it the full 72 hours to inflate. That's when the problems occurred. At 75 hours, the mattress had barely inflated to 8 inches. For reference, I bought the 10-inch. And I know sometimes that the measurements can be a bit off, so I considered it my fault for being such a cheap arse and not forking out for the 12 or 14. My reasoning: I was gonna get a topper at some point and I don't want to be like Princess and tf-ng Pea in a room with a low ceiling. I waited another day. Measured again. No sign of movement. I tried to contact the seller and, well anyone who has tried doing anything on Amazon knows how wonderful that is. Instead of giving me the seller, it sent me ring around the rosy with processing a return. I cannot tell you how many times I made it clear that I did NOT want to send it back and I did NOT want a refund. I only wanted help in trying to resolve this issue myself. I felt it was something that could be fixed. If it came to it, then we could talk about credits or refunds. This went on for over an hour. I finally managed somehow to be taken to the manufacturer's website and, once again went through the drama of "No, I don't want to return it and I don't want a refund. I just want help." I finally reached a human being at some point. A person by the name of Maverick contacted me and suggested I set the mattress on the floor and roll around or walk on it a bit. Apparently, sometimes the memory foam doesn't want to decompress all the way. These actions tend to help. I wrote back to him every time there was movement. 9 inches. 9.5 inches. I was so excited the day after my roommate slept on it that it got all the way up to 10 inches inflated! I immediately fired off a note to Maverick to let him know and to thank him for the suggestions. He was patient and told me exactly what needed to be done and why. It never even occurred to me that sometimes memory foam just "be that way" and you have to sort of give it a boost. All that said, I've been sleeping on it now for about a month. It's probably the most firm memory foam I've ever owned, and I probably could have done well with one a bit squishier, but this is fine. I got exactly what I ordered. I'm not gonna complain about that. I don't see any evidence of fiberglass, as mentioned in another review. Of course, I don't ever intent to remove the protective cover and will instead have one on top of it at some point. It being several inches more shallow than other mattresses I've owned, let me just tell you know... it puts them to shame! My previous mattress, same brand, was a 12-inch and not nearly as firm. It had edge issues where you'd fall to the floor if you weren't careful. I don't see that being an issue with this one. It's fairly sturdy sitting on the edge and I imagine that if I had access to the corners they would be the same #sleighbed. And my previous mattress, you could feel the metal slats underneath every freaking time you turned. It was awful. I had to put sheets of plywood down to keep from being gored in the night. With this mattress though?? I don't feel a dang thing. Granted the slats on this bed are wooden and not metal, even when I pounce on the bed, I don't feel a thing - just snuggliness. I'm waiting for my bed to break if I do that again though - for reference, I'm about 345lbs. Do you have any idea what that does to a bed if you just pounce on it like a lion on the Serengeti? Apparently, nothing (knock on wood). The mattress absorbs the impact. I would be confident with dropping an egg from a skyscraper onto this mattress. That is how awesome it is. It didn't have any sort of weird odor when I removed it from its wrapping. The only thing that sort of made it difficult to get any help was that the date of manufacture was missing from the tag when I was trying to get assistance from the manufacturer. If anyone has to deal with that, just take a picture of the tag anyway to prove that it is blank. It'll help you out in the long run. If I'm ever in the market for a mattress again any time soon, I am definitely purchasing this one - as long as it's available. I can sleep at night. It doesn't aggravate my low back pain or even my hip pain. I'm actually grateful it isn't as squishy as I would like because then my problem would be never wanting to get out of bed. Heck, even with my weight (when lying down) I barely sink into the mattress. And at least now I can wake up in the morning and go about my day without feeling as though my body has been hit by a truck and all I want to do is stay in bed. Very happy with this purchase!
S**K
BUY this mattress if your hips hurt
UPDATE 16 Months: We still love our beds. We have two of them. Even as heavy people we don't have any spots that have weird sink holes. My back and body have never felt better thanks to these mattresses. I suggest these to all of my friends, family, and clients and everyone has been thankful for the recommendation. You are getting a great quality bed that is safe to sleep on for very little money. Sleep is super important at our house and I wish we would have gotten these earlier. We cosleep with our children and these mattresses are perfect for that. Our infant has slept in this bed since about 20 minutes after birth with no issues. Our daughter loves it and doesn't like going to sleep at grandmas anymore because her bed isn't comfortable enough. UPDATE 6 Months: I love this bed still. We have two. I can't imagine life without them. They are wonderful. I sleep so well and I am 42 weeks along and 120lbs overweight. They are both 12 inches now and don't have any weird spots where we lay. First review:This is only day two with the mattress. I will update later for a better review. I am pregnant and was in the worst pain. My back and hips hurt so bad. I couldn't sleep. Walking hurt. Sitting hurt. After one night on this mattress I felt so much better. Now after two days I feel like I have a brand new body. I even rode comfortably in the car for two hours today without pain and I usually can't go that long. This is a great mattress for people with back and hip pain(mine is mostly from being overweight). It did smell a bit funny when we opened it. I put a nice mattress cover on it and it hides the smell pretty well. It isn't as bad smelling as a memory foam pillow I bought once. Now two days later the smell is way less when I move the cover. We bought two of these mattresses. One in each room. So far I would absolutely suggest this mattress. It still isn't 12 inches but it says that it may take a week when its cold. I will update once the smell is gone and the mattress is 12 inches so you know how long they both took. oh! I sleep on my back, stomach, and both sides and all are comfortable. Its not too firm or too soft. It came out of the box perfect with no rips, tears, or stains. Update day 11. I still love them. We bought two and they aren't the same. One inflated more and is firmer. The other is still around 9/10 inches and it is much softer. I like it better. The smell is still there when I take the covers off but it isn't bad. If I left them uncovered for a day it would really help but I can't risk it with kids and dogs in the house. I wake up each morning feeling like I have someone else's body. I wish I would have bought this bed years ago. The edges are lower on all sides of both beds, if you sleep close to the edge you will sort of be rolled towards the ground so try to stay a few inches in. Its really cold here right now so it may just need a bit more time to fully inflate. Personally I hope the one stays where it is at because its much softer.
C**Y
Best mattress for such a good price too! Decided to give a go due to recommendations from my brother and brother/sister in law whom both have it. My brother who has had his 12 inch for 8 years and still sees no difference in quality, and feels no difference in comfort. Hubby prefers a soft plushy mattress. I prefer one that is a little more firm. I am not sure how but this offers both. Though it has the firmness I feel a good mattress needs, it’s also soft and plush. It pretty well forms your body. Best mattress we’ve ever owned—first time buying mattress in a box! Wont go back to those in store high price mattresses ever again. We bought the 10 inch king and it’s perfect for us!
E**L
Paquete entregado un día antes, genial. Por otro lado, el colchón muy cómodo. La verdad que mejor de lo que esperaba. Excelente artículo y el precio accesible. Lo volería a comprar sin duda alguna.
M**M
I’m very happy with the Zinus Twin 8-inch mattress. It was easy to unpack, and it expanded to its full size within a few hours. The medium-firm feel provides good support while still being comfortable for everyday sleep. I use this mattress on a metal bed frame, and I added a plywood board underneath for extra support. With this setup, the mattress feels very stable and supportive, with no sagging. It contours well to the body and helps reduce pressure points, and I’ve noticed less stiffness in the mornings compared to my previous mattress. The mattress feels well made for the price, and there was only a mild odor when first opened, which disappeared quickly. Overall, this is an excellent mattress for the price and works very well with a solid support base. I would definitely recommend it.
A**D
Having been a loyal Zinus customer for several years, I have consistently found their products and packaging to be of high quality. Delivery and Setup (5/5) The mattress arrived securely packaged in its compressed "bed-in-a-box" format and was in flawless condition. Unboxing was simple, though the King size was heavy and required assistance. The mattress achieved its full loft and final dimensions within approximately 24 hours. Performance and Comfort (4/5) The aesthetic and surface feel of the mattress are excellent. After a week of use, the most significant observation is its therapeutic quality: it genuinely reduces back and shoulder pain, exactly as advertised. However, I have noted that the mattress is less firm than anticipated. Although it does not retain body impressions, it does exhibit considerable sinkage under the weight of a 140 lb individual. This raises a slight concern regarding its durability and how well it will maintain its supportive qualities over an extended period without forming permanent dips.
A**R
We purchased two of the full size mattresses to custom cut into our trailer bunk beds. I would have given the mattress 4 stars but we did find that one mattress was different than the other. One was softer, and had a better quality cover - the second thin cover not the main one. Although the other mattress is still ok - it is def more firm and we prefer the softer one. Really should have better quality control to ensure every customer gets the best version of this mattress. The softer one is more comfy. That said - we did NOT experience any fiberglass shards, dust, etc. when opening and cutting the mattress. For an RV/trailer, etc. where you need to custom cut, highly recommend this one. Btw - a sharp long bread knife did the trick no problem! You don't need to buy an electric knife if you don't have one.
Trustpilot
3 weeks ago
5 days ago