6 Inch Twin Mattress | Medium Firm Gel Memory Foam Mattress | White | with Washable Zipper Cover | for Pressure-Relieving Cool Sleep | 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.

5in got to about 6 1/2 took about a week to get to it full size, very comfortable as a Topper not as a mattresses on its own. Go for 10in and you'll have all you need for a mattress. I love it, it was just want i wanted there is gripping on the bottom helps it from sliding easily. Nice and squishy, fits king like i have, been using for 3 months and its really good.

I bought this gel memory foam mattress for my kids’ full-size bunk beds, and it’s perfect! The mattress is super comfortable and provides great support for growing kids. The gel memory foam adjusts well to their bodies and keeps them cool at night, which is a huge plus. For the price, the quality is outstanding. It fits the bunk beds perfectly and isn’t too heavy, so it was easy to set up. My kids love how soft and cozy it feels, and they’ve been sleeping better since we got these. If you’re looking for an affordable yet comfortable mattress for kids or guest beds, I highly recommend this one. Great value and comfort for the price!

Very comfortable and stays in shape well

This is actually pretty comfortable for the price. I was worried but pleasantly surprised. Ordered 2 of these for my grandkids bunk beds. Fit great. Perfect firmness without being too hard or soft. I just let it fluff up for about 2 days after I took it out of the box and it was great. Probably didn't have to let it stand that long but wanted to make sure it was fully fluffed up. No strange smells

Great mattress for a great price!. Mattress is a little firm but I personally like them that way. We ordered it for my daughter and we will definitely be getting our moneys worth plus more I think. Also arrived earlier than expected as well

I've ordered 3 for my kids, I'm jealous they're softer and more comfortable than my own mattress

I ordered 3 mattresses 12 inch thick. 1 full and 2 queens. The full size one arrived early and looks to be in good shape and comfy. Great value. There was an issue with the tracking info for the Queens, but their customer service was very helpful and reached out to me to get things straightened out. After a few days they queens are still not full size and the ends are squished and will not expanding anymore. I did get a full refund, but now I still need new mattresses and have to dispose of the defective ones.