Best Thread Count For Cool Sheets Explained

If you’ve ever woken up in the middle of the night feeling overheated, you know how the right sheets can make a world of difference. It’s not just about thread count; what really matters is how the fabric, weave, and performance features come together to balance softness, airflow, and moisture control. Simple adjustments there, and a night of sweat can turn into a night of solid rest.

With cooling bedding, the magic lies in choosing materials designed to stay cool to the touch, wick away moisture, and maintain breathability, especially in warm environments. Rest nails this with its Evercool® fabrics, which outperform traditional materials like cotton, bamboo, and silk when it comes to thermal regulation, softness, and keeping you dry all night.

Does a Higher Thread Count Always Mean Better Sheets?

A lot of people assume that the higher the thread count, the better the cooling sheets. But that’s not always the case. What really matters is the type of material and how it’s woven. These factors have more to do with how soft, breathable, and durable your sheets will feel over time.

For example, cotton sheets tend to feel best in the 400 to 600 thread count range, while bamboo sheets are usually comfortable between 250 and 350. Linen, on the other hand, is naturally airy and doesn’t need a high thread count; anything between 80 and 150 works perfectly.

So if you come across linen sheets with a “low” number, don’t assume they’re poor quality. It just means the fabric is lighter by design. In the end, the right choice comes down to your personal comfort and the kind of climate you live in.

Ideal Thread Count for Temperature-Controlled Sheets

It’s easy to think that the higher the thread count, the softer and better the sheets. But that’s not really the whole story. The fabric itself and how it’s woven matter just as much, sometimes even more, when it comes to comfort and durability.

Take cotton, for instance. It usually feels great in the 400 to 600 thread count range. Bamboo sheets, on the other hand, are naturally smooth and breathable even at 250 to 350. And linen is in a category of its own; it’s meant to be light and airy, so thread counts between 80 and 150 are completely normal. A lower number here doesn’t mean poor quality; it just reflects the way the fabric is designed.

At the end of the day, it’s less about chasing the biggest number and more about choosing the fabric that matches your comfort needs and the climate you’re in.

Best Sheet Material to Stay Cool

When it comes to keeping cool at night, not all sheets are created equal. Many brands lean on traditional fabrics like cotton or bamboo, which are breathable but don’t always solve the problem of overheating. Rest takes a different approach by designing fabrics from the ground up with cooling in mind.

Evercool® Cooling Fabric

Rest’s signature Evercool® fabric is the star of their bedding line. It’s made from a custom blend of nylon and spandex that feels instantly cool to the touch the moment you crawl into bed. Unlike cotton, which warms up as the night goes on, Evercool® maintains that refreshing, cool sensation for hours.

What makes it special:

• Highest cooling rating: Evercool® has a Qmax score of 0.44, more than double what you’ll find with cotton or bamboo. That means you actually feel the coolness right away.

• Moisture-wicking: If you deal with night sweats, this fabric pulls away moisture quickly, keeping the surface dry and breathable.

• Unbelievably soft: It has that buttery, smooth feel that gets even better with each wash.

IONIC+™ Silver Technology

Another feature you’ll only find in Rest’s sheets is IONIC+™ silver yarn woven directly into the fabric. This isn’t a coating that washes out; it’s built into the material itself. The silver ions naturally fight odor and bacteria, so your sheets stay fresher for longer. That means fewer wash cycles and a cleaner sleep environment.

Designed for Real Sleepers

Rest’s sheets aren’t just about fabric science; they’re made for everyday use. The fitted sheets have a secure stretch that hugs your mattress so they won’t slip or bunch up. They’re also machine washable, easy to care for, and durable enough to hold up to regular use without losing their cooling effect.

Why Choose Rest Over Others?

While natural fabrics like cotton, linen, or bamboo have their benefits, none of them deliver the same immediate and lasting cooling power as Rest’s Evercool®. Traditional sheets can breathe, but they can’t regulate temperature with the same consistency. Rest products are built specifically for hot sleepers, people dealing with night sweats, and anyone who wants that “ahh” cool-to-the-touch feeling every night.

Best Sheets for Cool, Comfortable Sleep

1. Evercool®+ Cooling Sheet Set

The Evercool®+ Cooling Sheet Set by Rest uses a nylon-spandex Evercool®+ fabric to stay cool, breathable, and moisture-wicking. IONIC+™ silver yarn adds antimicrobial benefits, keeping sheets fresh.

Rather than relying on traditional thread counts, the engineered knit structure disperses heat effectively, offering superior softness, airflow, and temperature regulation for hot sleepers.

2. Evercool®+ Flat Sheet

The Evercool®+ Flat Sheet is crafted from Rest’s nylon-spandex Evercool®+ fabric, offering a cool-to-the-touch, breathable, and moisture-wicking sleep surface. IONIC+™ silver yarn provides antimicrobial benefits to keep the sheet fresh longer.

Designed to complement the Evercool®+ Sheet Set, the flat sheet shares the same engineered knit structure that disperses heat efficiently, delivering softness, airflow, and temperature regulation without relying on traditional thread counts.

3. Evercool®+ Fitted Sheet

The Evercool®+ Fitted Sheet uses Rest’s nylon-spandex Evercool®+ fabric to stay cool, breathable, and moisture-wicking throughout the night. IONIC+™ silver yarn adds antimicrobial protection to keep it fresh.

Designed to fit mattresses up to 18 inches deep, the engineered knit structure disperses heat efficiently, offering superior softness, airflow, and temperature regulation without relying on traditional thread counts.

Thread Count and Fabric Details

Rest's Evercool®+ sheets do not adhere to traditional thread count metrics. Instead, they feature a high-density knit structure composed of 68 ultra-fine, fully drawn filaments per yarn, resulting in a fabric that is exceptionally smooth, breathable, and cool to the touch. This design outperforms high-thread-count sheets in heat dispersion and softness.

The Evercool®+ fabric blend comprises 80% nylon and 20% spandex, offering a cool-to-the-touch sensation, moisture-wicking properties, and enhanced durability. Additionally, IONIC+™ silver yarn technology is embedded into the fabric to provide antimicrobial benefits, helping to keep the sheets fresher for longer.

Fabric Weave: Why It Matters

When you’re shopping for sheets, it’s easy to focus only on the fabric type: cotton, bamboo, or even engineered blends. But just as important is the weave. The weave is how the vertical and horizontal threads are interlaced, and it has a big impact on how your sheets feel and perform.

• Sateen weave gives you a silky, smooth surface with a bit more weight. It holds onto warmth, making it cozy for cooler nights.

• Percale weave is lightweight and crisp, with a matte finish that feels fresh and breathable, ideal for hot sleepers or warmer climates.

Some newer weaves, like open-grid styles, take breathability a step further by letting air flow more freely across the surface. The right weave can transform the same fabric into something better suited for your comfort preferences.

Rest’s Approach to Cooling Weaves

At Rest, we’ve taken this idea and pushed it further with our Evercool® fabric. Instead of sticking to traditional sateen or percale, our sheets are designed with a unique knit structure that naturally enhances airflow and stretches with your mattress for a secure, stay-put fit.

This engineered weave does three important things:

1. Keeps you cool to the touch with Evercool®’s high Qmax cooling score (over double that of cotton or bamboo).

2. Boosts breathability so heat and moisture don’t get trapped under the covers.

3. It feels buttery, soft, smoother than sateen, lighter than percale, and designed to get softer wash after wash.

And because our sheets are infused with IONIC+™ silver yarn, they stay fresher for longer, cutting down on odors and giving you a cleaner sleep experience.

Final Thoughts

Thread count might get all the attention, but it’s only one piece of the puzzle. True comfort comes from how the fabric, construction, and technology work together to keep you cool and comfortable all night long. That’s why Rest doesn’t just chase numbers, we reimagined what cooling sheets could be with our Evercool® fabric and IONIC+™ silver technology.

The result is bedding that feels instantly cool to the touch, stays breathable, manages moisture, and even stays fresher between washes. For hot sleepers, people dealing with night sweats, or anyone who simply loves slipping into a cool bed at the end of the day, Rest sheets deliver what traditional fabrics can’t: reliable cooling comfort you can count on, every night.