6 Inch Twin Mattress | Medium Firm Base Foam Mattress | Removable Washable Zipper Cover | Breathable & Comfortable | White | Bed in a Box | CertiPUR-US Certified

The "5 Inch Gel Memory Foam Mattress Medium Firm Mattresses CertiPUR-US Certified Bed-in-a-Box Pressure Relieving King Size,Fiberglass Free, White" arrived promptly and was just as described online. As of 12/1/24 there are 1,364 customers who have rated this mattress as overwhelmingly EXCELLENT! I agree that it is: High-quality, 3-layer foam with excellent materials and construction, medium-firm and comfortable, gives an excellent night’s sleep, is easy to assemble or custom-size (see below) and is an excellent value for the money! My review is especially important if you are choosing this mattress to fit onto a custom-sized RV bed!! PROBLEM: Replacing a custom RV mattress. Hubby and I needed to replace the worn-out Queen+ mattress in the master cabin of our RV. We chose this excellent KING-sized 5" thick mattress as a replacement, with necessary DIY alterations. Our current custom-fit RV mattress is much larger than a Queen but smaller than a King. SOLUTION: We ordered the KING 5" mattress, with a plan to cut it down to size in the same dimensions as our old mattress. The tools required to do this job are a tape measure, marker, long straight edge or yardstick, pair of large and sharp scissors, safety pins, needle and strong (upholstery or button-hole) thread and an electric knife that will be used to cut the 5" thick foam. Step 1: Measure the old mattress and record its length and width. If it is an odd shape, make a cardboard or paper template from the old mattress. Step 2: Open and air out the new mattress for a few days to allow for full expansion and removal of manufacturing odors. Continue airing out until the foam measures a full 5" in thickness. We accomplished this in our garage on top of two clean, side-by-side, folding tables covered with a clean sheet. We allowed 4 days for expansion and deodorization in cool, fall temperatures. Step 3: Open the Quilted cover neatly on the side(s) that requires cutting and fully remove it. Step 4: Now the mattress can be marked for size, by drawing a series of dots about 12" apart along the side to be cut. Use the tape measure and marker to place dots at several locations along the proposed cut-off edge(s). Step 5: Draw a long and straight cutting line to connect the dots with the aid of marker and straight edge. We needed to remove 12" from one side of the foam and 2" from the end. Mark one side at a time. If the mattress fits against a wall, plan to orient the mattress to place the cut edge alongside the wall. Step 6: Use the electric knife to cut a steady, straight and smooth line through the entire thickness of foam in the marked area. If possible, practice cutting a straight line in the piece of foam from the old foam mattress, pillow or other source. Step 7: After cutting, trial fit the mattress in place and make any needed adjustments. Replace the Quilted mattress cover (a two-person task) and use the safety pins to secure the folded cover over the areas where the foam has been removed. Step 8: Hand-stitch the quilted cover closed over the foam with the needle and strong upholstery thread. Step 9: Place the new mattress on the bed and check for fit. Too big?...start over and trim excess foam. SUMMARY: This excellent, medium firm 5" mattress will give you the best night's sleep ever. You'll wake up energetic and fully refreshed. The mattress is an excellent value at $110. We received an estimate of $680 from a fabric store on a 5" slab of foam - no cover or padding. We saved $570 by DIY with the purchase of this oversized mattress from Amazon! Enjoy! Highly Recommended.

Feels great, very comfortable. Really soft and real memory form. Definitely worth the price. My kids love it

Bought 3 of these mattress and my teen grandkids loved them. Great product, its so good on bought one for my spare room.

MY DAUGHTER SAYS ITS VERY COMFORTABLE, IT WAS VERY LIGHT WEIGHT SHE CARRIED IT IN BY HERSELF, SHE SAYS IT FEELS GREAT ON HER BACK, AND IT NOT HUGE.

Bigger than expected

We ordered two twin 8” mattresses for a bunkbed frame. These are great, especially for the price. They’re on the firmer side, which we prefer. Packages arrived sooner than expected and setup was quick and easy. An excellent experience overall.

I bought this to put in the back of my truck for camping. I have a 2011 Ford Ranger with a camper shell. This mattress fits perfectly between the wheel wells and I am able to close the tailgate with no issue. I bought it for camping but I'll be honest I like sleeping on this mattress better than my own bed. It's a little firm but not too much I mean just right and you can't beat it for the money. I love going camping with it but it would be a great everyday bed too.

Do not buy this matress!! I couldn’t believe this matress when I found it, I was shocked the price was so inexpensive. I was looking for a matress for a long time that had no gel of any sort and no fiberglass, so when I found this mattress I thought I would give it a shot. I received the mattress in a box very quickly and it was delivered earlier than it was supposed to come. I was very excited and opened it right away, only to discover bugs crawling in the plastic packaging!!! And dirt as well! That really bothered me but I thought the matress would be okay after that so I continued to unpack the mattress. There was such a toxic off gassing smell!! I couldn’t sleep on it the first night, I left the mattress to air out in a separate room. Within a few days the Mattress rose to its full 6” in all the corners which was great! But after a week of airing out the mattress it still smelled so bad! I put the mattress in my room and tried to sleep on it for a night with the smell, and I awoke the next morning with major headaches, and my throat hurting! I waited another week, leaving the mattress in a separate room airing out, and still the smell remained. I tried to air it out even with the cover off! And the toxic smell never went away!! I even jumped all over the mattress several times to try to get the fumes inside the mattress out of the foam!!! I haven’t done that since I was a kid! I contacted Amazon 2x for a refund being as that I could not return it. There was no way I could return the mattress because the foam had completely expanded and I couldn’t reroll it as much as I tried. I even tried to settle for the mattress and keep it, but the 4 nights I slept on it I again woke up with my head exploding and my throat and eyes feeling weird. Thankfully by the 3rd time I contacted Amazon, they immediately gave me a refund. I had this mattress in my home for a month, until the refund came through and then I threw out the mattress. Please don’t waste your time with this cheap mattress! Find a better one! Honestly such a shame because the mattress was really comfortable!! Just the right amount of firm and softness, and the perfect height for my bed. Such a disappointment.