Protect-A-BedAllerZip Smooth Mattress Protector Machine Washable, Twin XL, 11-18 Inches

I bought two sizes of these Allerzip Smooth Encasements for a Queen bed. A smaller one, 7-12 inches deep, fit perfectly over a 9" boxspring. A larger one, 12-18 inches deep, fit perfectly over a 13" mattress. The fabric stretches, and it fit without sagging - not too tight, but also no extra fabric anywhere, just right.I'm very happy with this product. This was the best I could find among premium encasements that offered bugproof protection, and I shopped a lot, including looking at several competing encasements at Bed Bath & Beyond etc.AllerZip Smooth encasement was easy to install. The fabric is thick and sturdy (much sturdier and tighter weave than the other premium offerings I saw). The fabric is smooth, and it's quiet and sweat-free to sleep on. The quality (thickness, the tightness of the fabric weave and zipper, design of the lock) is much better than a $100+ premium encasement I bought at Sleepy's (that one disintegrated, was hot to sleep on, and did not have protective locks over zippers). I'm especially happy with the tightness and sturdiness of the fabric weave (especially when compared to what was offered for a similar or higher price at BBB).Installation was easy. However, some advice: 1) when installing on boxspring, put some duck tape on the metal corners of the boxspring, to protect the fabric of encasement; (those metal corners can be sharp as knives); 2) if using a metal bed, put some felt pads on the sharp edges of the bed; and 3) AllerZip encasement will trap anything inside - including AIR during installation; therefore, in order to avoid an air bubble, don't zip it fully before releasing (smoothing out) the trapped air.This is a very good product for what is needed (bugproof, allergy proof, quality).

Works well and fits even our very deep mattress

fabric is nice. fit mattress well

Very easy to install it, and it completely surrounds the mattress covering it fully on all six sides, including the underside, because it is zippered. It looks like a very good micro-tooth zipper, small enough so that dusty mites can’t bother my sleep. That is the only reason I bought it: to prevent dust mites, mold, and other allergy triggers. Make sure to wash it regularly, every month or two—more often if you have pets or allergies. Most mattress protectors are machine washable, but check the instructions to be sure. Typically they can be washed in cold or warm water, on delicate setting without detergents, and make sure to dry it on low heat. Detergents and high heat damage any waterproof layer.

Don't waste your money. The zipper broke after a short while and the thing is impossible to put on because of its design

I recently splurged on a brand new mattress, a Winkbed specifically, and wanted to also splurge on bedding to keep it safe and clean. I bought this when reading reviews and went with this one because of the craftsmanship of the product. It’s made intentionally and the seams provide the best possible protection from any type of contaminants or unwelcome bug friends. Upon receiving it, I struggled getting it on my mattress but that’s mainly because I’m a small person and my new mattress was a king size. My partner was able to help me here and having two people put it on the mattress made it much easier. The fit is amazing and perfectly snug. I really appreciate the label at each side of the bed to help you in knowing when/how to rotate your mattress. I will say it took me a while to figure out what those labels met since I’ve never made it a practice to rotate my mattress before but when I figured it out it made it easier to imagine doing this for my new mattress!

Waterproof, breathable, easy for one person to put on. They include a few tiny zip-ties to secure the zipper in place so it can't work loose. Perfect fit for a nine inch queen-sized mattress. With the ten year guarantee, the cost per year is negligible and the peace of mind is enormous.

It is durable and seems like it’ll get the job done in terms of protecting my mattress. I don’t feel it under my sheets but it was kind of hard to actually get onto my mattress

Fit a queen size Endy mattress perfectly. Comfortable to sleep on and no noise with movement.haven't washed it or tested waterproof capabilities yet.Picked this mattress protector after reading the review in thewirecutter