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SLEEP ZONE Cooling Mattress Topper California King, Premium Zoned Cool Mattress Pad Cover, Padded Mattress Protector Breathable Washable, Deep Pocket 8-21" (Grey, Cal King)

  • Based on 28,419 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
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Arrives Sunday, Jul 27
Order within 8 hours and 58 minutes
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Color: Grey


Size: California King


Features

  • Microfiber
  • Imported
  • COOLING BREATHABLE - Mattress pad with new NANOTEX Coolest Comfort Technology features moisture-wicking and fast-drying to actually balance your body temperature throughout the night. The sleep surface is treated with an embossed process, which is usually applied to sports fabrics, making it more breathable and stylish than ordinary material and bringing an advanced dynamic vibe to your bedroom.
  • ULTRA SOFT FLUFFY - We use 120gsm thick brushed microfiber as the sleep surface. Overfilled with 12oz 5D spiral fiber, thicker than most on the market. The fiberfill maintains excellent softness and resilience, making this mattress pad super fluffy. Let you enjoy the luxury hotel level of comfort at home.
  • UNIQUE 3-ZONE DESIGN - This mattress pad is ergonomically designed with three zones. The head and foot areas use a wavy design, which can ensure the edge is not deformed. The body area in the middle uses cloud-shaped quilting design to provide a larger body supportive area that disperses the body's pressure and prevents sagging. It helps to keep your body stretched naturally for deep and relaxed sleep.
  • DEEP POCKET EASY CARE - Quilted Stretch-to-Fit (8"-21"): knitted skirt pocket stretches up to 21 inches deep and can be easily placed on most mattresses. The 1.6-inch width of high-quality sport elastic trim securely holds your wrap in place, and its excellent elasticity makes the wrap easy to fit and remove. It ensures you get the most restful and restorative sleep. Machine wash cold, do not use bleach, tumble dry low.
  • SATISFACTION PROMISE - SLEEP ZONE has more than 40 years' experience in the design and manufacture of high-quality bedding. Our products are certified by Oeko-Tex. You can buy with confidence under our excellent product quality and customer service. If you have any inquiries or issues

Brand: SLEEP ZONE


Color: Grey


Size: California King


Fabric Type: Microfiber


Special Feature: Embossed, Cooling, 3-Zone Design


Brand: SLEEP ZONE


Color: Grey


Size: California King


Fabric Type: Microfiber


Special Feature: Embossed, Cooling, 3-Zone Design


Closure Type: Pull On


Product Care Instructions: Machine Wash, do_not_bleach


Water Resistance Level: Not Water Resistant


Age Range (Description): All Ages


Material: Microfiber


Thread Count: 400


Number of Items: 1


Manufacturer: SLEEP ZONE


UPC: 810029081719


Global Trade Identification Number: 19


Product Dimensions: 72 x 84 x 15 inches


Item Weight: 6.29 pounds


Country of Origin: China


Is Discontinued By Manufacturer: No


Assembly required: No


Number of pieces: 1


Batteries required: No


Included Components: Fitted Sheet


Import: Imported


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jul 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • This mattress cover is excellent, and the cooling actually works!
Color: White Size: Queen
I bought this replacement mattress cover because my other one kept shifting (within days of making my bed, previous covers would move and cause the sheets to get loose on the bed) and because I’ve had problems with night sweats for years. It takes care of both issues extremely well! I’ve had no problems with the sheets moving, nor have I overheated once. It seems like it’s the first one I’ve bought that I haven’t had any problems with. I bought the white cover, which has a very comfortable quilting and makes it feel very soft when laying on it. Because of how soft it is, I was worried that this was going to be another waste of money. However, I’ve been pleasantly surprised, and despite weeks of sleeping on it, I have not overheated at night once, nor have the sheets moved. I uploaded the picture to show how deep the corners are and how comfortably, but snug, they fit under a deep mattress with a topper on it. I have a regular mattress on my bed and a 4” foam mattress topper, but the mattress cover fit perfectly over the deep corners and still had enough room left to go several inches underneath each corner. There is a wide elastic band that goes around the entire edge that make sure there is a snug fit, but without being too tight. The mattress cover fit well in my washer and came out still looking great. I haven’t had it very long, so I can’t yet say it’s durable, but the few weeks I’ve had it, I haven’t noticed any runs in the corners when I change the sheets, which is already an improvement over other covers I’ve tried. I’d certainly recommend this to others. It is a great value for the money and I don’t think you’ll be disappointed. ... show more
Reviewed in the United States on October 10, 2024 by Hillary L. C. Hillary L. C.

  • Supportive, eliminated back pain, comfortable.
Color: Grey Size: Queen
My bed the way it is hurts my back so I got this "fluffy" mattress cover to try to help make my mattress a little bit more comfortable. I have bought multiple mattress toppers with memory foam, down alternative, you name it. None of them have helped my bed feel any more comfortable. I wanted 100% cotton but everyone that I invested in didn't do squat to help me. I decided to give this one a try even though it's polyester. After all my sheets that cover it are an amazing Egyptian cotton so I decided to just go with the cheaper polyester mattress topper to see what happens. Well last night I slept very well. I was extremely comfortable and my back did not hurt when I woke up. I used a memory foam bed topper and then I put this mattress topper on top of that. The topper is plenty deep to cover my entire mattress and it's about 14 in deep with the memory foam. It stayed in place all night long and I slept like a charm. It does not have a cooling effect that I noticed and it is not extremely fluffy but it did help me to sleep more comfortably and I did not wake up with back pain. If you're looking for something extremely fluffy this is it. If you're looking for something to give your bed an extra level of comfort, support, and to eliminate back pain this topper seems to cut it. I'm finally satisfied. Sometimes the best quality and more expensive and highly rated item is not where it's at. In my case the cheaper polyester mattress topper did the trick. ... show more
Reviewed in the United States on April 27, 2025 by Angela

  • Very nice topper
Color: Grey Size: Queen
This topper is very well made and has wide elastic to fit the bed snugly. I thought the topper would be a bit thicker though. It is comfortable but I'm not finding it cooling, at least not yet!
Reviewed in the United States on May 13, 2025 by Deena M

  • attractive, lightly padded softness, easy on/off, disperses heat
Color: Teal Size: Full
Fantastic fit on my full sized 10" hybrid mattress. No problems getting it on, at all. Super easy. My mattress is a little firm for my preference so I was looking at adding a pad (and actively shopping for) when I saw this. It looked interesting- cooling, adds some loft and softness, fits deep mattresses, attractive. And not over priced at $27 Figured it was worth giving a try. It fits my full sized bed really well. The elastic is thick and does a great job grabbing the underside of the mattress. I am suspect that it would fit a 21" (maybe 12", likely pushing it at 14") mattress, as the elastic just goes under my mattress. But whatever, it fits mine very well and stays put. It was easy to put on and take off (and put on again). I love the teal color, and the overall look. I almost don't want to cover it up as I really like how it looks with nothing else on it. It is kind of giving me ideas for another bed if I see a color that could work. It doesn't provide much of a plush padded feeling. But it does give just a light level of pleasantness. However, it isn't enough so I went and ordered a thicker pad. But I am pleased to have purchased it, and I imagine it will work well with the pad (haven't got it yet). EDIT: what a dream! It works really well over a mattress pad, and the combo is better than either one used alone. Doesn't exactly have a cooling effect, yet it seems to be able to disperse heat more evenly. Like my torso isn't hot when I sleep, but it isn't exactly cool. I think the main function is to keep moisture from being trapped which can make the body feel more hot. I am less hot since putting this pad on, which is a huge positive as my bed gets hot sleeping with big dogs. I think overall it is effective in making for a more comfortable bed. I DO recommend it. Oh one little detail in the packaging. I like how well it was packaged and how there was a strip of cardboard placed just under where the seams meet where one would usually take a box cutter to. If this was intentional then it was super thoughtful, as it helps to protect the mattress pad when trying to open the box. machine wash, tumble dry low. ... show more
Reviewed in the United States on September 20, 2020 by Precise Disarray Precise Disarray

  • A must have for all your beds
Color: Grey Size: King
These are the best mattress pad protectors. They work great and add a bit of softness to your bed. I love that they are colored instead of plain white. The cooling zones help if you are a hot sleeper like me and my husband. I now have them on all three beds in our house!
Reviewed in the United States on June 29, 2025 by M. Brown

  • Doesn’t really feel cool
Color: Grey Size: Queen
I bought this because I get very warm at night. So far when I wake up at night, this mattress topper is definitely not cool. It is cool when you first get in bed, but I don’t really notice the difference between this one and a regular mattress topper. As a mattress topper goes it is very good quality and very comfortable, which is why I haven’t returned it. ... show more
Reviewed in the United States on June 29, 2025 by Rhonda

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