Steve Hoyles

Sleep is the bedrock of human rest and recovery, serving as the foundation for
optimal physical and mental performance.

During sleep, our bodies repair tissues, undergo a neural reset, and regulate hormones. These are processes that underpin everything from immune function to emotional resilience.

Quality sleep enhances immunity by boosting the production of cytokines, proteins that fight infection and inflammation. It accelerates post-exercise recovery by promoting muscle repair and glycogen replenishment, while supporting tissue health through increased blood flow and cellular regeneration.

On the psychological side, restful nights improve focus, clarity, and decision-making, warding off the fog of fatigue. Conversely, poor sleep, plagued by insomnia, frequent awakenings, or shallow cycles, can lead to weakened immunity, delayed healing, heightened stress, and chronic exhaustion, exacerbating conditions like anxiety, depression, and even metabolic disorders.

Long story short, sleep is important.

In this post, we'll delve into the research supporting infrared's role in sleep optimisation, exploring mechanisms like nitric oxide (NO) production, thermoregulation, and the impact they have on insomnia, sleep quality, and energy levels.

The Science Behind Infrared and Sleep: Nitric Oxide's Crucial Role

Nitric oxide (NO) is a key biological messenger that influences sleep regulation,
acting as a modulator in the brain's sleep-wake cycles.

A comprehensive review published in the Journal of Neuroscience highlights how Nitric Oxide is distributed in brain regions critical for sleep. The molecule promotes
sleep, particularly rapid-eye-movement (REM) sleep [1].

Impairments in NO production due to ageing, neuro-degeneration, or inflammation can disrupt sleep patterns, leading to fragmented rest and increased fatigue.

Interestingly, research published in the Sleep Research Society’s Journal ‘Sleep’ concluded: ‘Acutely increasing nocturnal NO levels via pre-sleep inorganic nitrate supplementation improves objective indices of sleep quality in healthy adults. [2]

KYMIRA's infrared fabrics stimulate nitric oxide production. This vasodilatory effect
enhances blood circulation, oxygen delivery, and nutrient uptake, creating an environment conducive to deeper sleep. By priming the body for rest, infrared sleepwear addresses the root causes of poor sleep.

FIR Sheets and Sleepwear: Evidence from Clinical Studies

Direct research on FIR-emitting materials underscores their potential for improving
sleep metrics.

A study on KYMIRA products with the University of Texas found that utilising KYMIRA infrared only during sleep showed a 15.9% improvement in sleep quality, which correlated with a 15.8% improvement in fatigue and a 13.6% reduction in soreness. Wearers also report that they fall asleep faster, have less nighttime awakenings and wake up feeling more rejuvenated. [3]

Building on this, a recent preprint from bioRxiv provides physiological evidence for infrared’s benefits in sleepwear.

In a double-blind, randomised, placebo-controlled crossover study with healthy
young men, FIR-emitting garments significantly increased REM sleep percentage a stage vital for cognitive restoration and fatigue reduction.

The research demonstrated improved thermoregulation, with lower core body
temperature throughout the night, reduced sweating rates and decreased skin humidity mid-sleep. These changes indicate FIR's role in facilitating the natural drop in core temperature needed for sleep onset and maintenance, which is a process often disrupted in insomniacs.

Moreover, the study linked these effects to nitric oxide production, noting far infrared’s non-thermal stimulation of epidermal vasodilation, enhancing circulation. Finally, participants showed trends toward reduced morning stress, suggesting broader fatigue alleviation through better restorative sleep.

How KYMIRA Sleepwear Tackles Insomnia, Enhances Sleep Quality, and Reduces Fatigue

KYMIRA's sleepwear collection is engineered to leverage these scientific insights, providing a seamless way to incorporate infrared into your nightly routine. Our products, such as the Recovery Pyjama Top and Bottoms, use patented bio-ceramic
technology to convert wasted energy into infrared, which gently penetrates tissues to boost nitric oxide levels, improve blood flow and help you to thermoregulate.

For those battling insomnia, the enhanced vasodilation and relaxation promoted by infrared can shorten sleep latency, leading to fewer nighttime awakenings and more consolidated sleep.

Final Thoughts: Unlock Better Nights with KYMIRA

In a world where sleep deprivation is rampant, infrared sleepwear offers a natural, evidence-based ally against insomnia, subpar sleep quality, and lingering fatigue.

Backed by research, infrared bed sheets' insomnia relief, and thermoregulation's role
in restorative rest, KYMIRA's collection helps you to optimise sleep. Whether you're an athlete seeking faster recovery or someone striving for sharper focus and stronger immunity, our sleepwear range provides the edge you need.

References

[1] https://pmc.ncbi.nlm.nih.gov/articles/PMC3496746/

[2] https://academic.oup.com/sleep/article/48/Supplement_1/A40/8135362

[3] https://kymira.com/pages/the-applied-benefits-of-kymira-infrared-for-health-wellness

[4] https://www.biorxiv.org/content/10.1101/2024.06.13.598953v1.full