The Science Behind
Your Best Sleep
Two proprietary fabric technologies. Luxury hand-feel. Clinically validated by Frontiers of Sleep in conjunction with Harvard Medical School researchers.
Engineered to Work Together. Proven to Work Period.
Not "Cooling."
Temperature-Regulating.
Most cooling products are reactive — they try to cool you down after you're already sweating. That's why bamboo sheets and gel pillows stop working halfway through the night.
Lusomé's Xirotex™ technologies work differently. Our sheets absorb excess body heat before you start to sweat. Our sleepwear moves moisture away from skin within seconds. Together, they create a temperature-regulated sleep environment that adapts throughout the night.
This is the difference between a $89 bamboo sheet from Amazon and a clinically validated sleep system. One is a fabric claim. The other is a measured outcome.
✗ React after overheating starts
✗ Cool sensation fades within hours
✗ Polyester/Bamboo traps body heat
✗ Chemical finishes wash out
✗ No clinical validation
✓ Absorbs heat before sweating begins
✓ Dynamic regulation all night long
✓ 100% cotton with biobased technology
✓ Performance built into the fiber
✓ Validated by Harvard Medical School researchers
Absorbs Heat Before
You Start to Sweat
Xirotex™ Cool is a biobased treatment applied to 100% cotton. As your body begins to warm up, the fabric absorbs and stores excess heat into its fibers — intervening before the sweat response triggers.
Should your body cool down, stored heat energy is released back to you. This dynamic thermal response actively regulates temperature throughout the night — not just a cool-to-the-touch moment that fades.
*Peer-reviewed study published in Frontiers in Sleep (2025). Brigham and Women's Hospital / Harvard Medical School.
†Independent lab testing — University of Alberta. DSC heat absorption and surface temperature measurement.
Skin Dry Within Seconds.
All Night Long.
Xirotex™ Dry is an advanced blended fabric engineered to pull moisture from the surface for rapid evaporation. Unlike polyester wicking fabrics that trap heat against your body, Xirotex™ Dry moves moisture away from skin instantly — keeping you dry without sacrificing breathability.
The result? You wake up dry. Not in a clammy wet shell — in fabric that feels like luxury and performs like science.
Independently Tested. Clinically Proven. Peer-Reviewed.
Clinical trial published in Frontiers in Sleep (2025). Brigham and Women's Hospital / Harvard Medical School. 64 participants, 2,627 nights of data. Lab results proven independently at the University of Alberta.
Peer-Reviewed Study →U of A Lab Report (Sheets) →
Clinical Trial Results →
Reviewed by Dr. Rachel McQueen, PhD, textile scientist. Independent lab reports analyzed using the MMT industry standard for moisture transport.
Executive Summary →Full Lab Report →
Tested by Researchers. Not by Marketers.
Only Xirotex™ Achieves the Best Grade of 5
Dr. Rachel McQueen, PhD — textile scientist at the University of Alberta — reviewed and analyzed independent lab data for Xirotex™ Dry alongside Lunya, Cool Jams, Soma "Cool Nights," Joyaria, and Karen Neuburger.
OMMC (Overall Moisture Management Capability) — the industry standard for measuring liquid moisture transport. Grades 1–5 assigned based on MMT test performance.
How We Compare
Compare and see why our sheets stand out from the rest.
Test methods: 1. DSC (Differential Scanning Calorimeter) measures heat absorption. 2. Hot Plate + Multichannel Thermometer for surface temperature.
Read Full Lab Report (Sheets) →Our sheets were also validated through a peer-reviewed clinical study published in Frontiers in Sleep (2025) by Harvard Medical School researchers.
Read the Peer-Reviewed Study →Your Sleep System Starts Here
30-night risk-free trial. Free shipping on orders over $100.
Peer-Reviewed in Frontiers in Sleep · Harvard Medical School Researchers · Oprah Daily 2025-26 Sleep O-Wards · Since 2014
