I was looking for both a firm and not hot memory foam mattress. This one is firm but comfortable. I'm primarily a back sleeper but when I roll On my side it's also comfortable. It's memory foam so does retain heat, but retains way less heat than my prior "cool mattress topper" from nova form. I also placed two Cotten blankets atop the mattress (under my sheets) and find I can feel some of the heat retention but instead it being hot, it's a pleasant reminder of my new Uber comfortable mattress. Shout out to the reviewers that helped me find this firm Memory foam mattress that isn't too hot!!!

** Initial review: 4 stars ** (see updates below)

I got this mattress in 10" queen in gray. I've had many memory-foam mattresses/"bed in a box" kits over the years. What appealed to me about this one was the price and that it's fiberglass-free.

UNPACKING IT

Hubby and I opened the mattress at 4:00 pm and closely inspected it "” no mold or dirt. Whew. Looked totally clean. I have allergies and am a STICKLER about clean mattresses. Had I seen a smudge of anything remotely suspect, I would have immediately returned it. I was horrified by the stories from other reviewers about finding mold (and then being told by the company that it was "just dirt" "” equally unacceptable!), and honestly I was expecting the worst. I literally tried to cancel my order twice, but Amazon refused because it had already shipped. Fortunately, to my great relief, the mattress arrived 100% clean. And believe me, I inspected every inch of the thing.

As part of my inspection, I checked the fabric and stitching all the way around. I saw no open seams or loose threads. The zippers ran smoothly.

There was no smell at all once we got it out of the packaging. Memory foam mattresses have a very recognizable odor (if you've had one, you know) and usually off-gas for a few days. This one had a faint odor ONLY during the five minutes we were removing the plastic packaging. (And honestly, a lot of products do that if they've been cooped up in plastic wrap for a time.) It went away immediately.

FIBERGLASS DOUBLE-CHECK

I unzipped the cover a few inches "” gingerly at first "” to confirm that the mattress is indeed fiberglass-free, as advertised. THANK GOD. The slabs of foam are held together by a knit "sock" that clearly does not contain fiberglass because it is matte and has no shiny bits, nor did it shed any fibers. It appears to be a cotton-poly blend. See my attached photo.

This means the cover is washable! (To be clear, I'm talking about the *zippered cover*, not the inner sock.) Although I don't personally need to wash the cover "” because I use an allergen-proof mattress encasement "” I can see how having the option to wash it could be useful.

HEIGHT

We set the mattress on the bed frame, and two hours later, it had plumped up to 8".

Twenty-four hours later, it had only plumped up to 9", and one of the corners by the footboard was still a bit crumpled.

At this point now (a week into it, at the time I'm writing this review), I'm not sure it will ever fully inflate to the stated 10". Not a huge deal, though, as I only ordered this mattress as an emergency stopgap until we can buy a nicer one locally.

FIRMNESS

Everyone's perception will be different, but on a scale of 1-10, where 1=plush (squishmallow) and 10=firm (plank of wood), this mattress feels to me like an 8. It's quite firm. I honestly wasn't expecting this. All of my memory foam mattresses over the years have been a ~5 (fairly cushy), so I assumed this one would be too.

Despite my reservations about its firmness, I have slept VERY well on this mattress over the past week. No pain, zero complaints. I don't normally go for firm mattresses, but I may be a convert now. LOL.

FINAL THOUGHTS

Overall this is an excellent mattress if you have a smaller budget and want to avoid the dreaded fiberglass sock. Despite its minor drawbacks, for the price, it's a perfectly acceptable mattress.

** UPDATE, four days later **

The crumpled corner has fixed itself, but the mattress is still only 9" tall.

** UPDATE, two weeks later: Rating increased to 5 stars **

I changed the bed linens today and, for craps & cackles, measured the height of the mattress again. It's at 10" now. I was shocked that it actually got there. I'm still loving the firmness and have been waking up blessedly pain-free. I've increased my rating to five stars.

** UPDATE, three months later, January 2023 **

I am IN LOVE with this mattress. I don't think I'll bother buying a different one locally, as this "stopgap" mattress has exceeded all my expectations.

I noticed the manufacturer is now, at the time of this update, offering more variations of this mattress than were available when I bought it. There are now "firm" options.

My best guess is that the mattress I bought & received is the "firm" variety, and they are selling a new, softer mattress slotted into the plain "8/10/12-inch" categories.

Why do I think this?

Because I cannot imagine how a memory foam mattress could possibly be firmer than mine without either defying the laws of physics or being a slab of literal stone.

If we end up ordering a new mattress for the guest room, you can bet we'll buy this one again, and I'll report back and either confirm or refute my theory about the new "firm" variety.

** UPDATE, six months after original review, April 2023 **

WE DID IT: We bought the exact same mattress, 10" gray, for the guest room "” and my theory was right!

The new mattress is softer, about a 6 on the 1-10 firmness scale.

It also plumped up WAY faster than the original one, probably because it's less dense. The height measured 8.5" a mere 30 minutes after opening and reached the full 10" by the next day. All four corners were immediately crisp with no crumpling. The cover was clean & pristine on all sides. No odor. We are extremely pleased!

Our original mattress is still phenomenal. Zero complaints. Would buy again in a heartbeat.

I can confidently give my full endorsement of this mattress, both the "firm" and "not firm" varieties.

May you have restful and pain-free sleep, my friend.

My only complaint is this. I got the medium firm mattress and it is FIRM. I don't know how on earth it's medium because the firm mattress must be made of bricks. With that being said it is still surprisingly comfortable and acceptable. Just feel that it's a bit misleading. Also, my mattress was inflated in a couple hours but I gave it a full 24hrs just because. For all the people complaining about poor inflation it does state that it could take up to 72 hours.

I will say that the first few nights were torture. You will need to give your body at least a few days to a week to adjust to this bed. BUT, after that you're going to love it.

We ordered the 12 inch firm. It is firm, feels pretty rock hard when you first sit or lay down, but after about a minute you'll notice the bed con-caves to your body. It barely does though so don't expect to really sink into this bed.

We've had the bed for almost two weeks and I still love it. I sleep deeper and wake up less. It is very nice that my husbands tossing and turning doesn't wake me up anymore. I also notice no pain when I get up and my husband has said the same.

Only con I would say is that I don't really notice the "cooling" gel. But that's really the only con.

I would highly recommend to friends and family.

So my dog peed on my bed because my husband didn't want to take her out...my old bed was an 8" medium from Amazon bought about 3 years ago. It has needed replacing and i spend a few hours reading reviews and investigating my options. I knew i wanted a more firm mattress due to my previous experience and that the toppers usually break in reducing the level of firmness. I slept my first night on the bed last night. It is probably the most firm bed I have ever had. Its not bad but I am aware I am getting used to it. I could sleep on my stomach and not have my lower back hurt which has been a problem with medium to soft beds. My shoulders were not crammed up to my ears; again a problem with softer beds and I didn't wake up with shoulder pain or numb arms which has been an issue since old bed has been needing replaced. I did notice there is some give in the topper/memory foam but definitely not as much as my other bed. I can lay there move my leg and feel an impression which also expands back within seconds. My only issue is my lower back was hurting very minorly after my sleep BUT i have been go go go with chores and lifting and moving and my back also hurt worse in my old bed. I do know my body will need to adjust to the new level of firmness so I am not going ot say my back pain is due to the bed. I will have to wait a few weeks and see. Overall, I love the bed so much more than my other one and am already happy about the changes I see I do hope once I let my body rest and adjust to the bed my back will be fine. Otherwise that is my only concern and I wish i had bought a replacement bed much sooner.

1 Week in and I notice my body has adjusted. I feel like i sleep deeper, my husband doesn't wake me flopping around like a fish in his sleep. I don't wake up with any pain. I do notice the bed is cooler and I find myself actually getting cold so I don't have to have the AC on anymore. It is still weird to initially lay down as I am still surprised by firmness but I have zero issues and will be curious how it breaks in in the next few months.