I bought the Full/Double 12" memory foam cool sleep matress for our guest room to place on a metal bed.

Unboxing: item arrived in a box weighing 55 pounds. My husband brought it upstairs by himself. The box was a manageable size for 1 person. The mattress was folded in half, head to toe, then rolled up tight and shrink wrapped. There was an envelope opener tool taped to the side. I highly recommend using this tool over scissors or other sharp objects so you don't accidentally cut into the mattress cover. You only need to carefully slice through one layer of plastic, then you just unroll the remaining layers. The mattress cover was nice and clean. No odors or off-gassing smells detected (and I have a sensitive nose).

Set up: Admittedly the matress looks pretty sad and flat immediately upon unwrapping. DON'T BE ALARMED! It will expand. At this point, make sure the matress is on a flat surface where it can expand freely without any pressure or pinch points. We unwrapped ours around 7pm. Within 3-4 hours, the mattress had risen to 10." By morning, it was at the full 12." The corners were nice and square. We then positioned it into place on the bed frame and made the bed.

The bed frame we used is a metal frame with round metal pole type "slats" for a base. The metal head and footboards kept the mattress from shifting around. It's a nice and snug fit. No gaps.

Comfort: When I assembled the bed frame, I was a little concerned I might be able to feel the round metal slats through the matress. I've never had a foam mattress before. I'm happy to report that was not an issue. Can't feel them at all. If you're worried at all about the mattress being folded head to toe for shipping, don't be. It lays completely flat and I can't even tell it was ever folded now that it rebounded/expanded.

I would describe the mattress as medium firm. At first it feels firm, then the matress gives way to your body's pressure points and it feels just right, neither firm nor plush. With memory foam, there's no bounce like spring mattresses can have, which also means there's no movement when your partner moves. With 2 people, we did not experience any rolling toward the center. I've also laid near the edge and had no problems with edge collapse.

I'm super pleased with this purchase so far. Too soon to tell yet how it will hold up longterm, but since this is for a guest room, and based on my initial impression of the product, I'm not worried.

Only bummer was 3 days after delivery, the price dropped 29%, which would've made this an absolute steal of a deal. Even the regular price is a bargain.

I would not hesitate to buy again.

EDITED TO ADD: We bought a 2nd mattress. Our teen wanted to upgrade from a twin to a double, so we bought another. She loves it. Quality is consistent.

I'm usually not one to leave reviews but this mattress"¦.. I love it! I wanted to give it a couple weeks before reviewing but I was satisfied the first night we slept on it.

For reference, I purchased the 12" Blue Firm king size mattress. I got my first memory foam mattress right at the the time "bed in a box" options first started to pop up online. That initial mattress nearly made me avoid memory foam entirely. It was a "medium-firm" 14" king size and it was TERRIBLE. It was dipping within the first week. And my husband and I were much smaller people at the time. Hip and back pain became a constant companion but it was quite pricy and we were trying to make it work. A couple weeks ago I simply had enough. It was time to look at other options.

I couldn't find much that wasn't memory foam though. Over the years I purchased other memory foam mattresses for our boys and I found them quite comfy so I figured maybe we'd have better luck trying a different firmness or maybe design had come a long way since we bought ours. I read through reviews for days before landing on the Molblly brand. I was still a little unsure on which firmness to get because some reviews said the medium firm was too firm. Others said too soft. The reviews were equally mixed on the firm mattresses.

Ultimately I decided to go with firm for more support to help with my pain and figured I could always put a topper on it to add extra softness.

The mattress was here within 48 hours. I immediately unboxed it to expand. It was much firmer than our previous mattress but again, there was the topper option if that turned out to be a problem. It was MUCH lighter than my previous mattress too. I was a little worried at first that it had only expanded 9" in 12 hours but based on other memory foam mattresses I've purchased I knew I needed to trust the process. Besides, in my experience, memory foam can expand up to an inch off so as long as it hit 11" I would be satisfied.

72 hours later and it expanded to around 11.75"! Perfect. When I first laid on it I immediately thought "uh oh" as it was FIRM. Plusher than the floor but pretty firm all the same but"¦. Trust the process.

That first night's sleep it was pretty clear that while this was indeed a much firmer mattress than the one I had, it was also incredibly comfortable. I can't explain it but after you lay down a few minutes it gets a bit softer as it molds to your pressure points. It was the best nights sleep I had in YEARS. No topper needed. Over the last week I've also noticed my back and hips are less sore. My husband also saw a reduction in headaches he had been waking up with a couple times a week too.

I can't speak to longevity yet but it seems to be a higher quality than my previous mattress. And you can't beat the price.

Speaking of price, I had purchased the mattress on Saturday during Labor Day weekend. I figured any holiday sales would be up already so just bought it. I didn't want to wait ;) but when I hopped on to check my order that Monday to check tracking I noticed it was marked down $45 less than what I had paid less than two days before.

Totally my fault as I shouldn't have assumed there wasn't a sale planned for Monday but I figured it wouldn't hurt to contact the company. They were very kind and helpful and immediately refunded me the difference. I'm pretty much their customer for life now ;)

I definitely recommend!!

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.

We wanted to upgrade from a queen to a California king. I was nervous about buying a cheaper mattress off Amazon and I was scared about cheaper ones that contain fiberglass. I picked this one because there's a reviewer who opened it up and confirmed no fiberglass. This was the best price and the highest ratings. Still coming from a tuft to needle mattress I was nervous"¦

The mattress came quickly and we laid it out flat on the ground and let it air out for 48hrs. We did open a window for most of the time so I didn't notice too much of a smell. It puffed up instantly and I really had to restrain myself from pressing on it or laying on it.

After 48hrs everything reached the full size there was one corner that was just ever so slightly deformed but after rubbing it and a week of sleeping on it the entire bed decompressed.

Initially when I first layed on it the bed was very firm and I felt like I was going to have to get a topper. The first night I slept so well and we were so relived that we didn't pay an arm and leg for a California king.

After a week I feel like I sleep better at night and I wake up with less pain though still firm it contours perfectly to our bodies and it's so comfortable. I really am so glad we got this bed and I think it's high quality considering I'm sleeping better on this than my $1000 tuft to needle bed. BUY IT!!!

We received this mattress a little over a week ago. I let it inflate for 24 hours and it fully inflated to 10 inches. My husband has chronic back and neck pain due to a few motocross accidents in his younger years. He always wakes up in so much pain and we had a $3000 mattress. I have seen this mattress on TikTok and so many amazing reviews so I thought why not. In case it didn't work out I was only out a few hundred dollars. But this mattress is amazing. So soft, yet firm. You feel so light weight sleeping on it. My husband says it is the best sleep. Of course, a mattress won't cure his backpain but he can now sleep peacefully and not wake up in agony. Not sure how long a $300 mattress will last but we love it so much!