---
product_id: 184698289
title: "National Allergy Superior 100% Cotton California King Mattress Protector Zippered - 73\" x 84\" x 9\" - Hypoallergenic Bed Encasement - Breathable Dust Proof Cover - Oeko-TEX Standard 100 Certified"
brand: "national allergy"
price: "21965 kr"
currency: ISK
in_stock: true
reviews_count: 11
url: https://www.desertcart.is/products/184698289-national-allergy-superior-100-cotton-california-king-mattress-protector-zippered
store_origin: IS
region: Iceland
---

# Auto Locking Zipper Breathable 300 TC 100% Cotton National Allergy Superior 100% Cotton California King Mattress Protector Zippered - 73" x 84" x 9" - Hypoallergenic Bed Encasement - Breathable Dust Proof Cover - Oeko-TEX Standard 100 Certified

**Brand:** national allergy
**Price:** 21965 kr
**Availability:** ✅ In Stock

## Summary

> Sleep Smart, Live Well! 💤

## Quick Answers

- **What is this?** National Allergy Superior 100% Cotton California King Mattress Protector Zippered - 73" x 84" x 9" - Hypoallergenic Bed Encasement - Breathable Dust Proof Cover - Oeko-TEX Standard 100 Certified by national allergy
- **How much does it cost?** 21965 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/184698289-national-allergy-superior-100-cotton-california-king-mattress-protector-zippered)

## Best For

- national allergy enthusiasts

## Why This Product

- Trusted national allergy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Perfect Fit:** Designed for California King mattresses (73" x 84") with a 9-inch depth.
- • **Easy Maintenance:** Machine washable for effortless care and longevity.
- • **Noiseless Comfort:** Sleep soundly with a soft, quiet encasement.
- • **Doctor Recommended:** Trusted by healthcare professionals for your peace of mind.
- • **Ultimate Protection:** Experience unparalleled defense against allergens and spills.

## Overview

The National Allergy Premium 100% Cotton Zippered Mattress Protector offers advanced protection for your California King mattress. With a breathable 300 thread count and a unique auto-locking zipper system, it ensures a clean, comfortable, and allergen-free sleep environment. Recommended by doctors, this noiseless and easy-to-care-for protector is the perfect addition to your bedroom for a healthier lifestyle.

## Description

National Allergy Superior 100% Cotton California King Mattress Protector Zippered - 73" x 84" x 9" - Hypoallergenic Bed Encasement - Breathable Dust Proof Cover - Oeko-TEX Standard 100 Certified

## Features

- Advanced Protection: National Allergy Mattress Protectors are made from 100% breathable cotton, which promotes a sounder nights rest. We feature an exclusive Zipper System, engineered to fully encase & protect your mattress. Recommended by Doctors.
- Zipper Mattress Cover Protection: Keep your mattress clean & protected with the Zippered Two-Part System. The auto locking zipper ensures that it will stay closed. An added barrier creates a fabric shield under the zipper closure to doubly ensure there are no gaps.
- Breathable & Tight Weave: Our USA-designed, 100% cotton weave, is recommended by Doctors nationwide. Our fabric is woven so tightly that only air can get through. With a mean pore size of 2.6 microns, our breathable fabric keeps you cool, comfortable, and protected.
- Noiseless comfort: National Allergy's Mattress Protector is made from 100% cotton. Our durable & quiet mattress encasement is soft to the touch and noiseless when moving around while asleep. This cover is designed to provide an extra layer of quality protection.
- Easy Care: National Allergy's soft, durable, & 100% cotton zippered mattress encasements are fully machine washable, making them the perfect choice for everyone. Our doctor recommended mattress protectors are designed for everyday life, easy to clean & easy to use.

## Images

![National Allergy Superior 100% Cotton California King Mattress Protector Zippered - 73" x 84" x 9" - Hypoallergenic Bed Encasement - Breathable Dust Proof Cover - Oeko-TEX Standard 100 Certified - Image 1](https://m.media-amazon.com/images/I/713j3UlU4uL.jpg)
![National Allergy Superior 100% Cotton California King Mattress Protector Zippered - 73" x 84" x 9" - Hypoallergenic Bed Encasement - Breathable Dust Proof Cover - Oeko-TEX Standard 100 Certified - Image 2](https://m.media-amazon.com/images/I/81SUlo1w+KL.jpg)
![National Allergy Superior 100% Cotton California King Mattress Protector Zippered - 73" x 84" x 9" - Hypoallergenic Bed Encasement - Breathable Dust Proof Cover - Oeko-TEX Standard 100 Certified - Image 3](https://m.media-amazon.com/images/I/81S9B8Ldn4L.jpg)
![National Allergy Superior 100% Cotton California King Mattress Protector Zippered - 73" x 84" x 9" - Hypoallergenic Bed Encasement - Breathable Dust Proof Cover - Oeko-TEX Standard 100 Certified - Image 4](https://m.media-amazon.com/images/I/81chpGM05HL.jpg)
![National Allergy Superior 100% Cotton California King Mattress Protector Zippered - 73" x 84" x 9" - Hypoallergenic Bed Encasement - Breathable Dust Proof Cover - Oeko-TEX Standard 100 Certified - Image 5](https://m.media-amazon.com/images/I/81B4GItGc8L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: What size fits a: 120 x 210 x 4.5 cm mattress (why not also specify the exact size in cm or inches)?**
A: Mattress Sizes in Inches & CM (source: The Internet)*Twin--39 x 75 inches (or 99 x 190 cm)*X-Long Twin--39 x 80 inches (99 x 203 cm)*Full--54 x 75 inches (137 x 190 cm)*Queen--60 x 80 inches (or 153 x 203 cm)*King--76 x 80 inches (or 198 x 203 cm)*California King--72 x 84 inches (or 182 x 213 cm)Using these calculations the depth of the Mattress would be about 12 inches, if I calculated correctly, I don't use a calculater. According to the above measurements the nearest mattress size to fit your 120 x 210 x 4.5 cm is a full size bed with a twelve inch deep mattress.

**Q: is the zipper on 3 sides or just one?**
A: I used to have allergy cover with zipper on 3 sides.  I thought only on 1 this that this cover would be very hard to get on.  But I just slide my mattress off the end of my bed, basically stood it upright leaning against the wall/leaning against the bedframe  (my bedframe is taller than most, just fyi, being a drawer frame) and this zipper on only 1 end was actually EASIER to slide on my mattress than my old one!!!!

I was so surprised!!!! I guess bc less material to move around and "get away from me" under the mattress???

Hope this answer helps you all :)

**Q: Very crinkly and noisy. Will washing it help?**
A: I always wash linens before putting them on my bed. If it’s still too crinkly, try some fabric softener. I washed mine with regular detergent, and dried with a dryer sheet. Soft and comfortable now.

**Q: What's included with this?  does it come with pillow cases, mattress protector and box spring protector?**
A: Mattress cover only. !00% cotton, zippered protector. There is a smell that goes away with washing. I washed mine before putting it on the mattress. Bought a second one for another mattress. The only 100% cotton protector I've ever been pleased with.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Soft, effective allergy control mattress cover
  

*by B***N on Reviewed in the United States on February 20, 2013*

Got this a few weeks ago after first trying the Allersoft pillow cover made from the same material. I have a dust mite allergy and was constantly suffering with a very stuffy nose all night long. OTC medication (Zyrtec) did not help it. The only thing that helped was prescription Flonase. But after using it 2+ years, my nasal cavities became irritated. So I tried this mattress cover, and switched to Allegra OTC. My allergy symptoms are much better. Not 100% gone, but 80-90%. I only have occasional stuffy nose while sleeping now, and suspect it is due to dust mites in the room (carpet) and not from the mattress. My next step will be to eliminate the carpet and go to hardwood floors. Oh, I also use an Eco Living Friendly (ELF) box spring protector purchased from Amazon. I can't say for sure that either the mattress covers or the Allegra have provided the biggest benefit. But the cost for the mattress cover is only equal to a few months of allergy medication, so it is money well spent if it adds another layer of control. I can say that there have been no negative effects from the mattress cover.The best thing about it is it is very soft and cool. It was easy to put on a regular twin. All I did was raise up the mattress from the foot of the bed until it was vertical. Then slid the cover over the top (head) and pulled it down to the bottom. Then laid the mattress head back down, lifted the mattress foot slightly, and pulled the cover over the foot of the mattress and zipped it up. It fits quite loose on my regular 7" deep mattress, so I just tucked the extra material underneath. For anything larger than a regular twin, this is probably a 2 person job to put on.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works great!!!
  

*by T***R on Reviewed in the United States on October 25, 2023*

Easy to put on the mattress with one person, arrived on time, so far it's held up well. Would most definitely recommend buying

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Large. Hard to prevent wrinkles.
  

*by T***K on Reviewed in the United States on October 1, 2023*

This was designed for a larger mattress. Ours is 15" tall.

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---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-24*