Night Sweat Sufferers Sleep Better, Stay Cooler, Drier, Fresher

Performance fibers, yarns and textiles originally developed for active and outdoor sports are increasingly showing up in other products. Moisture management (meaning sweat removal and/or quick dry benefits), breathability, odor elimination, microbe control and other features not only provide great comfort they promote cleanliness and good health. Now, drirelease® with FreshGuard®, a popular technology by Optimer Performance Fibers well known among athletes and outdoor aficionados since 2000, is being used by medical and wellness brands.

drirelease whisks moisture away from the skin and dries four times faster than cotton, while its companion technology, FreshGuard, eliminates odors and controls the growth of bacteria. It is this combination of hygienic and comfort attributes of drirelease with FreshGuard that got the attention of medical and health care brands.

First Introduced in the Running Market

Originally targeted at and tested by marathon runners, drirelease with FreshGuard, has now moved from day into night, providing relief and comfort to men and women of all ages suffering from night sweats and overheating caused by pregnancy, hyperthyroidism, chemotherapy, surgery, and certain medications as well as menopause.

Relief Discovered by Athletes

Seattle-based Wildbleu® sleepwear for women was founded by sports executive, Helen Rockey, whose first-hand experience with drirelease technology inspired the line. While at Brooks Sports she and her staff dressed marathon runners in drirelease T-shirts for an event. The results surprised her.

“We got calls from women who had worn them to sleep in,” says Rockey. “They reported finding relief during menopausal hot flashes and night sweats while wearing drirelease and wanted to know where they could buy more.” Rather than endure being awakened with the need to change their sleepwear the drirelease shirts made them feel cooler and dried so quickly, it helped them sleep better and more comfortably, they said.

Now offering bed linens as well, Wildbleu products are rapidly becoming popular as a welcome antidote for other medical conditions that can cause the body to overheat and perspire.

To find drirelease sleepwear and bed linens via wholesale and/or direct consumer sales, contact:

Wildbleu:, Paddi Murphy, Cooljamaz: or Comfort Therapy: ​

To learn more about drirelease, visit

About Optimer

Optimer Brands, formerly known as Optimer Inc., a Sterling Capital Partners company, is based in Chicago, IL, with operations in Wilmington, DE.

Founded in 2001, Optimer Brands conducts textile research, development and marketing and has a scientific staff credited with over 100 patents and developments. drirelease® is a registered trademark of Optimer Brands. It is a patented, intimate blend of synthetic and natural fibers that combine wicking and quick drying attributes into a single yarn. Instead of spreading the moisture across a fabric’s surface, drirelease actually pushes it to the outside of a garment, releasing water and perspiration faster than any other performance fabric on the market. drirelease includes the added benefit of FreshGuard®, an odor neutralizer embedded in all drirelease fabrics that virtually eliminates odor without using harmful chemicals. All drirelease attributes are inherent to our yarns, meaning they will not wear or wash out. For more information, visit

FreshGuard® is a registered trademark of Optimer Brands. It is an odor neutralizer embedded in all drirelease fabrics. It eliminates odors in garments by blocking odor-causing sebaceous body oils from attaching to the fabric – also stopping the attraction of odor-causing bacteria. Not an anti-microbial or anti-bacterial, which attack bacteria that possess positive functions, FreshGuard is environmentally friendly. For more information, visit