Cal-King Mattress Toppers
72x84 inches
Viscosoft’s Cal-King mattress toppers are designed to meet your needs. They provide a soluton for tired mattresses, too firm mattresses, and back pain relief.
Free shipping, easy returns & a 90-day guarantee.
reviews from customers like you
see what people are saying
We bought the topper for
We bought the topper for our guest bedroom on our older cal king bed-in-a-box. Our guest spent 4 nights on it and said they slept great on it. I wish we had bought it for ourselves during the years we slept on it before we bought our new King Sz bed. Definitely recommend
Feels fine
Better feel than I thought. Not too soft or hard. Easy to install. Seems to stay in place. Put on a new too firm cal king.
Added Comfort we were Looking for!
I'm super happy with this topper. We bought a new split Cal King adjustable bed and it was too hard for me. I really wanted a soft cradling feel and now I have it with this topper. I also sleep really hot on memory foam but the cooling effects of this topper work great for me.
back to the future
I was experiencing terrible back issues when arising each day. Instead of investing $3500 in a new king size mattress I decided to try a Viscosoft 3" mattress topper. Now I spring out of bed and have no trouble straightening up. I highly recommend this product. The price is right and the service top notch.
Mission "Lower Temperature"Accomplished, Select High Density Topper Success
My new Tempur-pedic cal king mattress was sleeping very hot. I needed a solid, quality, solution. Viscosoft topper met the challenge. I am sleeping normal temperatures now and very satisfied. The way the topper molds to my body without sinking so much as to be hard to get up is very commendable. Quality is superb. TRead more about review stating Mission "Lower Temperature"Accomplished, Select High Density Topper Successhe 42lbs weight will translate to a long lasting product. Outgasing was almost undetectable and passed in one day, probably due to the sealed packageing. As a note, if either sleeper is very short the extra 3 inches could make getting in and out a little difficult. I had to replace my old box springs (9in) with a low profile (5in) to maintain the bed height since my wife is very short. Problem solved. I am very satisfied with this product. Sleeps great
Finally
We have bought and returned several mattress sets over the last year, Our current mattress is fine, but we have more aches pains due to health issues, so glad I came across this product and done this first, gave us exactly what we each needed as we have a split cal king, just needed more plush without sacrificing suRead more about review stating Finallypport, plus the cooling for me is awesome. Wish we hadn't wasted all those delivery fees and return fees on inflatable garbage mattress.
So Great, I Bought TWO!
I'm always suspicious of rave reviews that hype a product, but this mattress topper definitely lives up to those rave reviews! My cal king-sized mattress is near the end of its life span and I needed something to bolster it until I can save for a new one. After much researching, the Sleep Institute gave this maRead more about review stating So Great, I Bought TWO!ttress topper high marks so I took a chance and bought it... BEST purchase I've made in a long time! I love the overall support no matter what position I sleep in. For the first time in months, I wake up and I don't ache when I get out of bed. When I told my mom how awesome this mattress topper is, she commented that she could use one, as her bed is too firm for her old bones... so guess what she's getting for her birthday this month! :-) I definitely recommend this mattress topper for anyone who needs cushioning support, especially if their regular mattress is no longer providing it... you may never want to leave your bed again!
Thanks to this topper I don"t hurt anymore!
I LOVE THIS TOPPER! I have shopped for a topper for over a year. Had to send back 2 others from different company's. I purchased a Cal. King topper and it fit perfect. I did not really expect the topper to be cooling, but it is! My mattress is way to firm, but also has body craters in it and it is only 3yrs. oldRead more about review stating Thanks to this topper I don"t hurt anymore! and not a cheap one. There is nothing I do not like about this topper. Price, delivery, etc. all excellent. Thanks for a great product.
Our Cal-King Best Sellers
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Select High Density
![Best for extra support. Photo of a thick white and blue topper fitted to a mattress with white elastic adjustable straps.]()
![Best for extra support. Photo of a thick white and blue topper fitted to a mattress with white elastic adjustable straps.]()
Our Cal-King high-density memory foam mattress topper is more durable than comparable foams, feels plush & pushes back with resilient support after your body settles.
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Hybrid Lux
![Best for plush comfort. Photo of a plush quilted white mattress topper fitted to a mattress with a full elastic skirt.]()
![Best for plush comfort. Photo of a plush quilted white mattress topper fitted to a mattress with a full elastic skirt.]()
The best of both worlds. This Cal-King mattress topper balances the support of memory foam with the plush comfort of a down alternative pillow top cover.
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Active Cooling
![Best for cooling relief. Photo of a thick white mattress topper with black elastic adjustable straps.]()
![Best for cooling relief. Photo of a thick white mattress topper with black elastic adjustable straps.]()
This Cal-King mattress topper is built with copper-infused foam & a cover made with phase-changing yarns to help you sleep cool throughout the night.
The Cal-King Mattress Topper
Extra room in all directions
Cal-King (California King) is a great size for those looking for that extra room that a King sized bed provides but adds extra vertical length so you have some extra room at your feet. Perfect for people who are tall or people who have pets that just love to hog the area at the foot of the bed.
Wide variety of toppers
We've got something for everybody
We have a wide selection of Cal-King sized mattress toppers, including high-density memory foam for pain relief, dual-layered pillow-top & memory foam for plush comfort, and copper-infused foam for cooling relief.
All of our Cal-King mattress toppers have a 90-day guarantee, fast & free shipping, and hassle-free returns.
Not the size you need?
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Our mattress toppers are also available in the following sizes: