ZINUS10 Inch Queen Cooling Comfort Hybrid Mattress [New Version], Fiberglass Free, Medium Firm Feel, Motion Isolation, Certified Safe Foams & FabricOEKO-TEX STANDARD 100

TLDR: I'm really surprised how much we like this mattress. Two thumbs up! I highly recommend it as long as you aren't concerned with non-padded sides.We were moving our child from a toddler bed to their first real bed. The toddler bed was essentially a bed frame with a particleboard base and the Moonlight Slumber Little Dreamer foam mattress.First, we started with this bed frame: https://www.amazon.com/dp/B078HZYSG8?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_5. Then I went to the big box hardware store and got a 1/8" piece of plywood to serve as a mattress base.After extensive (ie 10 hours) online searching for a mattress, I decided to go with a 'mattress in a box' instead of a traditional mattress for many reasons. I zeroed in on this Zinus 12" with pocket coils and cooling foam for a few reasons:- Zinus is a known newer brand with a reputation they need to maintain- Sold and shipped by Amazon with the 100-night Amazon return policy backed by the 10-year Zinus warranty- Foam over individually pocketed coils, which we thought would provide the comfort of springs with the foam my child was used to (we bought a much more expensive 'top of the line' solid foam Tuft and Needle cooling mattress for our other child, and honestly after 4 years? meh. Heavy, which makes it hard to change the sheets and worse, it sleeps super hot)- Fiberglass free and claims that they don't use harmful chemicals, OEKO-TEX standards, etc. (I mean, why not if you have a choice?)- Medium firm (similar to the toddler mattress my child liked so much)- Cooling gel (my child is a hot sleeper)- Low price (if my child hates it? Oh well cheap experiment).We bought this in February 2025 and delivery and set up were easy enough. I unfurled the bed in an empty room and within 30 minutes, it was useable, but we left it alone for 5 days. Ever so slight chemical odor that went away after a couple days. My first impressions were that when I moved it, it was light and felt cheap. There are no sides to a 'mattress in a box' and you can feel the springs when you touch the sides. 'Oh well' I thought and proceeded to put it on my child's bed. Seemed really comfortable once you hopped on and were in 'sleeping position'. Easily supports my ~170lbs so it is definitely supportive of my child, who was thrilled with the new bed. Being able to really feel the springs on the side bothered me, but if my kid's happy, that's all that matters.Fast forward 5 months (July 2025) and I couldn't be more pleased with the purchase. My child used to wake up ~1am every single night on the old toddler bed and wander into my room. That has only happened 2x in 5 months. My child thinks it's a super comfortable bed. I do as well. I often lay in that bed until my child dozes off. I have messed up shoulders and always experience pain when laying on my sides in my own bed (super fancy Sleep Number with an adjustable base and the remote controls). I'm also a very hot sleeper and in the summer, I will sweat in the Sleep Number. Admittedly, I myself often doze off in this Zinus bed on my side for a couple hours while putting my child to sleep and wake up with no shoulder pain - and I don't wake up sweaty at all. There are no indentations on the bed after 5 months.All that said, I'm super impressed. It's not a premium feeling mattress, but it gets the most important part done - providing a really comfortable surface to get a restful nights sleep. Once my Sleep Number breaks, I'm going to explore Zinus's 'lux' options at that point for my own bed (perhaps a deep Zinus pocket coil spring and cooling foam on top - and put that on the Sleep Number adjustable platform).I'll come back and update if the springs or memory foam start breaking down, it starts sagging/retaining body impressions, has springs coming out the size, etc.

Why did you pick this product vs others?:If you are on the fence about this mattress, let me assure you, you will not be disappointed. First time buying a mattress online, was a little hesitant. It is a great product. The mattress is dense and very much like memory foam. It is a firm feel at first but it definitely hugs your body. Very happy with my purchase

I needed a new mattress because I was having back soreness when waking up and my previous mattress was a little too thin for me. Very simple to set up, just removed the plastic outer packaging and let it inflate for a day. Good amount of firmness and I don't wake up with my back sore anymore which is why I bought it!The mattress doesn't sink too much and it has some memory foam properties but still maintains its firmness and durability well. Didn't smell like anything out of the packaging. Fits very well on my bed frame and is the indicated size.Don't really feel like there's a clear cooling effect on hot summer nights, but you can't beat the price so overall I'm very satisfied. I've bought other mattresses in the past from the brand and find them to be relatively reliable.

I thought this bed would be good for me as people said it was more of a medium firm- I do think it’s pretty comfy, but I didn’t realize how bad of a problem has started giving me because it is too firm and wake up with really bad shoulder and back pain. It is a great durable Mattress though, but just not something for me. I do work out and I weigh about 150. For reference

Why did you pick this product vs others?:I picked this mattress mainly because it was discounted during Prime Days. It has far exceeded my expectations! So easy to set up. The quality is evident as soon as you open the box. This mattress is insanely comfortable! I would have to recommend this to anyone wanting a quality mattress.

I got sick and tired of buying dog beds, struggling to wash them, having to replace them all the time. I finally just got an actual mattress. Covered this in a fully enclosed mattress protector. A labrador, golden retriever, and two spaniel mixes fit on it perfectly with plenty of space. All I have to do is change the sheets and I never have to deal with another stupid dog bed again. This whole set up was about the cost of one dog bed half its size and those dog beds for $150 only last a few months before getting holes or the foam smells like dog. This mattress was truly a great investment. Next time I need to buy a mattress for myself I’m getting this brand.

I bought 3 of these mattresses for my kids. We moved into a new house and I decided to throw away their old mattresses and buy new ones. They came rolled up in a box. We opened up the box and let the mattresses sit out un-rolled all day, then put them on the beds. They expanded enough that that were comfortable enough to sleep on that night. Two days later they are fully expanded. There were no problems during that time and the kids slept on them each night. These mattresses are great quality and worth every penny.

Have had this mattress about 3 months now, wanted to give it a little time before I reviewed it. There is nothing cooling about this, it is very warm. As far as firmness goes it seems to be on the softer side of medium on each side, almost a soft, then the middle is more like a medium. Sometimes as I roll over to get up I feel like I’m going to fall out of bed, the edge is very soft.