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But how does this material actually work, and is it effective?

So, is GlacioTex the right material for you?

Tom�s Guide mattress testers sitting on a Helix Midnight Elite mattress with GlacioTex in a luxurious bedroom

Let’s take a closer look.

What is GlacioTex?

GlacioTex is a fabric made of fibers with high thermal conductivity.

A hand feels the temperature regulation of the Bear GlacioTex Protector

That’s not all.

As well as creating a sleep surface that feels comfortably cool as soon as you lie down.

This also helps to prevent you getting hot through the night.

Coils inside a hybrid cooling mattress

Thebest hybrid mattressesare naturally cooler than all-foam mattresses thanks to open coil structures that allow for airflow.

The coil layers in these mattresses help to dissipate heat that would get trapped in their all-foam counterparts.

Breathable materials

Alongside GlacioTex, there are many breathable materials that are naturally cooler than others.

A couple in a Sleep Number smart bed

For example, organic materials, ‘cool-to-touch’ textiles and moisture-wicking fabrics.

These include the likes of Tencel, viscose and lyocell.

Cooling gel

Foam acts like a sponge, soaking up body heat and warm air.

Nectar Premier Copper Mattress

The absorbed heat is then distributed across the mattress, helping to maintain a more even temperature.

Does every cooling mattress need GlacioTex?

As we’ve explored here, there are many ways mattresses can offer a cool, comfortable sleep.

Close-up of the GlacioTex Cooling Mattress Protector

The image shows the DreamCloud Hybrid Mattress on a grey bed foundation in a neutrally decorated bedroom

A couple laying on Bear Elite Hybrid mattress with Celliant in bedroom with black pattern rug, grey headboard and black bedside tables with lamps

Zoma Boost mattress

Blonde woman laying on Brooklyn Bedding CopperFlex mattress in bedroom with wooden floor, wooden bed base and two bedside tables

Two women sit on the Nolah Natural 11 Mattress

A woman laying awake at night with arms overhead

A split image featuring the Nectar Classic Memory Foam Mattress on the left and the DreamCloud Luxury Hybrid on the right, leading into the DreamCloud Luxury Hybrid vs Nectar Classic showdown

The image shows a woman sitting up in bed and clutching her shoulder in pain

The Tempur-Pedic Tempur-Adapt mattress on a bed frame in a bedroom, a man and his young sun sitting on top of it, smiling. A Tom�s Guide price drop deals graphic (right)

A couple using the Scandinavian Sleep Method

Bed bugs

The Saatva Murphy Bed Mattress on a Murphy bed frame lying flat, in a bedroom

A woman with an afro sleeping on her side covered in grey duvet while she sweats in her sleep, thinking of a cooling mattress.

A woman with brown hair lies on her stomach on a grey colour Japanese floor mattress

A mattress we tested is dressed with neutral colour bed linens and pillows

Casper Wave Hybrid Snow review: woman lying on the mattress on her side, with her head on a pillow

Woman smiling while she sleeps with headphones in and her arms overhead

A person wearing rubber gloves uses a spray bottle and a clean cloth to clean the surface of the Emma Elite mattress.

Green skull on smartphone screen.