Yawnder reviews · Original 2015 firsthand account · Updated October 2026
My verdict
I used the Malouf Isolus topper on my latex mattress and particularly liked how well its studded underside kept it in place. The original review describes its contouring foam and removable cover, with photos of both the topper on the bed and the grip surface underneath.
My original firsthand review
My original observations and photos are preserved below. Prices, shopping references and quoted specifications describe earlier products and listings.
If you find that your bed is a bit too stiff for your taste these days, you may want to consider a mattress topper. It's a much more economical choice as opposed to buying a new mattress. I often encourage readers who have only slept on inner springs and are mulling a memory foam mattress to get a feel for a memory foam mattress with a memory foam topper. The biggest lament I hear about transitioning from innerspring to foam is the loss of bounce. Getting a memory foam topper for your existing innerspring give you a taste of what to expect.
The second most asked question about transitioning from inner spring to memory foam is do they sleep hot? The answer to that question is it really comes down to the construction and layering of the foam and most importantly what type of foam is used. If you buy a mattress or topper with cooling gel, it will dramatically help with temperature regulation.
If you're looking for a current Malouf topper, the old Isolus naming is legacy. Malouf now sells its Gel Memory Foam Mattress Topper as the current cooling/pressure-relief option. This 2.5" mattress topper is infused with a cooling gel that will help regulate your temperature throughout the night.
This mattress topper Utilizes a pin-core design which means that the gel memory foam is ventilated to increase air flow and regulate sleeping temperature.The memory foam quickly contours to your body to cradle you just right. Anything thicker than this would most likely mean you need to get a new mattress.
Here's the Malouf mattress topper on my latex bed.
It is encased in a soft bamboo cover that is removable and washable. Bamboo is another textile that will keep you cool and is popping up in many new bedding products.
Below is a picture of the back of the mattress topper. There are tiny studs that will grip the mattress so it won't shift or slide around at night. The Isolus did a great job of staying in place.
The Isolus price in this older review is no longer current. Malouf now sells its Gel Memory Foam Mattress Topper under current branding, so check Malouf for live pricing. If your mattress is still giving you proper support but feels too hard, a topper can still be a less expensive alternative to replacing the whole mattress.
Malouf was started among a couple in an apartment that had a passion for finding the best quality bedding products and making them accessible to everyone. The brand has since then exploded in to an international company. Their commitment to quality remains the same and it shows through this mattress topper. Get it here.
Disclosure: We aim to highlight products and services you might find interesting, and if you buy them, we may get a small share of the revenue.
Questions about this review
Did it stay in place?
Yes. I wrote that the Isolus did a great job of staying in place and photographed the small studs on its underside.
Which product did I use?
The original Malouf Isolus topper shown on my latex mattress. Later references to a current Malouf model do not establish identical construction.
What can I learn from the photos?
One shows the topper on my bed; the other shows the underside used to grip the mattress. They document the reviewed product’s appearance and construction.
Does the review include a measured cooling result?
No temperature measurements are recorded in the retained account. Its cooling descriptions should not be mistaken for a measured overnight result.
Review by Ben Trapskin. Yawnder may earn a commission from qualifying purchases.