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OLANLY Dual-Layer 4 Inch Cal King Size Memory Foam Mattress Topper for Back Pain, 2 Inch Cooling Pillow Top Mattress Pad Cover and 2 Inch Gel Memory Foam Topper, Deep Elastic Pocket, Grey

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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Jun 8
Order within 16 hours and 30 minutes
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Color: Grey


Size: California King


Features

  • Dual-Layer Luxury for Supreme Comfort: Designed with a 2-inch gel-infused memory foam base and a 2-inch plush pillow top layer, this 4 inch memory foam mattress topper california king size combines body-contouring support with cloud-like softness. Perfect for those looking to refresh their california king mattress topper without buying a new mattress.
  • Enhanced Pressure Relief & Body Alignment: Wake up refreshed and ache-free with the adaptive support of the california king memory foam mattress topper. It cushions pressure points and helps align the spine, making it an excellent choice for side, back, or stomach sleepers.
  • Snug Fit with Deep Pocket Skirt: The 360 elastic deep-pocket skirt hugs your california king size mattress like a fitted sheet, accommodating beds up to 21 inches thick. Whether you're upgrading an old mattress or enhancing a new one, this mattress topper california king size bed stays securely in place.
  • Cooling Comfort All Night Long: The diamond-stitched pillow top not only enhances airflow, stay cool and sweat-free through the night but adds a touch of luxury to your bedroom aesthetic. Built to withstand daily use, this pillow top mattress topper california king is both cozy and long-lasting.
  • Easy Setup & Simple Maintenance: Designed for quick installation, simply unfold and smooth out for instant comfortno tools required. The removable cover is machine washable for hassle-free cleaning, ensuring your california king mattress topper stays fresh and durable with minimal effort.

Brand: OLANLY


Color: Grey


Size: California King


Fabric Type: Memory Foam, Polyester


Special Feature: Adjustable, Eco-Friendly, Pillow Top, Quilted, Washable


Brand Name: OLANLY


Age Range Description: Adult


Number of Items: 1


Manufacturer: OLANLY


Included Components: 1 × 2 Inch Gel Memory Foam, 1 × 2 Inch Mattress Pad Cover


Unit Count: 1.0 Count


Item Weight: 22.8 Pounds


Item Type Name: mattress-toppers


Other Special Features of the Product: Adjustable, Eco-Friendly, Pillow Top, Quilted, Washable


Closure Type: Pull On


Water Resistance Level: Not Water Resistant


Item Firmness Description: Medium


Fabric Type: Memory Foam, Polyester


Product Care Instructions: Machine Wash Cold Separately


Material Type: Polyester


Size: California King


Item Display Dimensions: 84 x 72 x 16 inches


Color: Grey


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 8

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • So comfy
Color: White Size: King
I was in need of a new mattress topper because my old one was getting pretty icky. I liked that this one had two layers (a foam and pillow layer). It arrived shrink wrapped together. I ordered a King size, so it was a bit difficult for me on my own to arrange it on the bed after opening, but I was able to get it to work. I only let it rise for about an hour or so - it expanded very quickly. I have an older dog that is prone to accidents, so I purchased a waterproof sheet that goes over this and my mattress to protect it - and that has worked very well so far. It has a lot of cushion and I end up sinking into the bed. It does add quite a bit of height. I have Boll & Branch sheets which are very deep, and this along with my mattress made it so that it was a tight fit. It works though and I love it, as do my dogs! ... show more
Reviewed in the United States on March 17, 2026 by Alisha

  • Very comfortable
Color: Grey Size: King
So far so good. When I got it I thought I might have to return it because the memory foam insert was about three inches wider then it should be. But it has not been an issue once I placed it into the topper and put the pad on the bed. The topper is made like a fitted sheet with ample room to fit the memory foam insert and my 10 inch mattress easily. So it keeps everything in place. I have had no issues at all. The two inch topper is very soft and the added 2 inch memory foam insert makes it very comfortable. ... show more
Reviewed in the United States on January 23, 2026 by Amazon Customer

  • The best mattress topper for elderly
Color: Grey Size: Twin XL
Love how comfortable it makes moms back feel
Reviewed in the United States on April 1, 2026 by Patricia Hull aka Pattiwitch

  • Nice topper
Color: Light Grey Size: Queen
This topper helped make my bed more comfortable. I expected it to be softer, but it will work. No odor which is a big plus for me. I'm happy overall.
Reviewed in the United States on March 29, 2026 by Marlin

  • Like sleeping on a cloud
Color: Light Grey Size: King
Best nights of sleep I’ve gotten in a while. So plush and inviting. Fits perfectly under my fitted sheet as well.
Reviewed in the United States on April 23, 2026 by Angel

  • Great for those with back pain
Color: White Size: King
Very comfortable. Was great for my back I have had 3 back surgeries and waiting on a 4th this really made a difference in my morning back pain. Only issue is even thoughbits a king in hangs over the side by about 6 inches but that's minor in comparison. Would highly recommend it
Reviewed in the United States on March 28, 2026 by Dawn

  • Love/Hate
Color: Light Grey Size: King
This topper is extremely comfortable BUT I now wake up with headaches, hip pain and back pain.
Reviewed in the United States on March 29, 2026 by Lauren Martin

  • So worth the money!
Color: White Size: Queen
This was a game changer for me— it comes sealed so tiny that I thought this was such a waste and how am I ever going to return this. But— leave it out for a few days and it really puffed up. And so easy to put on the bed and my hip pain has decreased now that this has taken my stiff mattress to a softer one. Totally recommend! ... show more
Reviewed in the United States on February 27, 2026 by lewgirl

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