ZINUS 5 Inch Twin Cooling Essential Memory Foam Mattress [NewVersion], Fiberglass Free, Medium Feel, Breathable Cooling Layers, Certified Safe MaterialsOEKO-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.

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 love the comforter set. Perfect replacement for a tired set. The King size one is larger than usual, it hangs down nicely. I wish that I would have ordered a darker color though. My lovable dog Odin sleeps with me and the creamy/yellowish gray shows his 🐾 in no time. Good news, it stands up to many washings! Would buy another one, just a different shade for the sake of saving water!

So we just purchased this during Prime days - after desperately needing a mattress for a long time and this one was a great price we decided on this one. Its taking some getting used to . Its a little too firm for me as i prefer a softer mattress however It does hug your body and supports as it should . My back has not been hurting when i get out of bed anymore. If you prefer a "softer" memory foam this isn't for you . As far as cooling, I wouldn't say it is cooling . Im very hot natured and this has not made a difference in that aspect.

So I bought these for my kids, and had never actually slept on them. Fast forward six months, and I’m moving into a new house sleeping on one of them on the floor. Those few days I was able to sleep on them while the kids weren’t home, I woke up feeling refreshed and so much less stiff! When I can, I fully intend on getting a queen sized one

I don’t usually write reviews, but I had to come write one for this mattress. I bought the queen size on prime day in 2022 and it is now 2025. I just got the best night sleep! After three years of sleeping on this mattress, it is still like the day I bought it. It is cool, it is clean and there are no dips or deformations. My son makes me coffee in the morning and he said the cup on the bed. I move around sit up get up to use the bathroom and it has never once spilled. This matches really is great.

The most amazing matress I have ever slept on. I have been sleeping like a baby since I have switched to this matress. It is even more asotnishing to me that you can get such a quality product for around $100. The price is worth it to see if the product is for you or not. Major YES for me!

I can successfully say that I now know what Patrick Star's sand/rock mattress feels like.I don't like a super soft bed, but I don't what it to feel like I'm sleeping on the floor.This bed feels like you're sleeping on the floor 😑.It has no smell after letting it air out for a day. I've only had it for a few days now, but the fit on the bedframe is nice. I don't have a ruler to measure the expansion capacity but it looks around 10in-12in. Idk how the durability is gonna go since it's fully foam, but it's definitely something you want a mattress protector for in case of any spills.After a roll over accident a 3 days ago, I was hoping my first night in my new apt on my new bed was going to feel awesome. I didn't feel any pain relief.I'm giving this 4 stars because it definitely has a quality feel. Maybe it's something you have to break in or get used to but for a blind buy and the payment installment options I am still somewhat satisfied with this purchase. If you like a very firm bed, go for it.