Category Archives: Sleep Science

When we created SHEEX, we were inspired by the ridiculously soft feel, breathability, and quick-dry features of the latest performance athletic fabrics. As basketball coaches, we had witnessed first-hand the evolution of these fabrics in athletic wear and knew these new fabrics enhance the performance of athletes. Unlike soak-drenched cotton t-shirts and shorts, performance fabrics breathe better, wick moisture and stretch to move with your body. They keep athletes cool, dry and comfortable. We wondered if this same advanced material could also help produce an optimum sleep experience?

After two years of research and development, we learned the answer: According to testing, the advanced performance fabric we use in SHEEX does help create and maintain optimum conditions for deeper, more comfortable sleep. To understand how, let’s address some basic facts about sleep and human physiology.

When you fall asleep, your body temperature naturally drops, helping you achieve deep sleep and a better night’s rest. This important relationship between temperature and sleep quality also extends to the sleep environment in general. The National Sleep Foundation notes that  “temperatures above 75 degrees Fahrenheit and below 54 degrees will disrupt sleep.” Further, the University of Maryland Medical Center advises, “a cool (not cold) bedroom is often the most conducive to sleep.”

Timothy Ferris, author of the best-selling book “The 4-Hour Body,” examined the impact of temperature on sleep and concluded that “using a single bedsheet at a room temperature between 67 degrees F and 70 degrees F produced the fastest time to sleep. Warmer temperatures never worked.” According to Tim, controlling for this important variable yielded the most consistent results.

Most people don’t realize that they sleep too hot, and their sleep quality suffers because of it. A bedroom that’s too warm may be part of the issue, but compounding the problem are traditional cotton bed sheets that trap heat, increasing body temperature and disrupting sleep. SHEEX wick away moisture while breathing and releasing excess heat better than cotton, helping regulate your body’s temperature so it can more easily reach and stay in that natural temperature “sweet spot” for deep, restful sleep.

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