For restful and healthy sleep, the body lowers its core temperature by 1.5°C in the evening and during the first half of the night. This happens through evaporation or sweating, which is why we lose about 700ml of fluid every night.
If there is a humid climate in the sleeping space between sleeper and blanket, the body struggles to regulate its temperature, and sleep quality inevitably suffers.
Third of Life's Performance Sleepwear proven to wick moisture away better at the same temperature than cotton nightwear, creating a better sleep climate:
More about the background of the study
The big downside of cotton – well known from sports – is that it soaks up sweat and keeps moisture on the skin.
Third of Life's functional nightwear is based on a concept of two layers with functional zones:
The functional zones have different knit structures that address local climate needs, such as a perforated mesh structure under the armpits and on parts of the chest and back for better ventilation.
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“My first SleepShirt certainly won’t be the last. The product delivers what it promises: you sweat less! Everyone can only be positively surprised.”
Dr. Ilona Zenker
Lawyer
“Since I started using Third of Life Sleepwear and Nutrition, I sleep much better and my performance has improved.”
Markus Brand
State-certified mountain guide
“The first fitting of the pajamas felt sensational. Like a second skin. Since then, I sleep significantly better and no longer wake up at night to change the sweaty pajamas.”
Harry Ploemacher
CEO
“I was really very skeptical whether the sleepwear would help, as my boyfriend is an extreme sweater. But it is not only very cozy and fits perfectly, he really sweats much less in it and especially doesn’t smell the next morning!”
Constanze Künschner
Fashion Manager
“I am very impressed and convinced that I have slept better and noticeably more relaxed than usual!”
Götz Nafe
Managing Director
“The sleepwear fits perfectly and is very comfortable to wear. Since I have owned the Third of Life sleepwear, not a single night has passed without me wearing it.”
Michael Klein
Real estate agent
The study was conducted by c.russ-NETCONSULT, an independent provider of climate measurements. The THG SleepView was used, a 70x140cm sensor blanket with 46 sensors that record temperature and humidity values in the sleeping environment, the space between sleeper and blanket, every 10 seconds. Data from several nights (each 7.5 hours of pure sleep time) were compared:
The data can be evaluated either by curve progressions throughout the night or in the form of 2-dimensional heat and moisture maps.
Climate is an interaction between heat and moisture, and climate comfort occurs exactly when the body is not sweating. Therefore, trapped moisture should be avoided as it increases the sensation of heat (higher perceived warmth)!
A study by the University of Applied Sciences in Munich (Morena/Kurz/Krah, 2011) found that the climatic comfort zone in a microclimate, such as under the covers while sleeping, is at
It became clear that Third of Life’s Performance Sleepwear keeps the sleeper significantly longer in the climatic comfort zone than cotton nightwear.
The difference becomes even clearer the warmer the night is, and thus the more moisture management the nightwear needs.
On the warm night (approx. 23°C), the time spent in the comfort zone with Third of Life was three times longer than with cotton!
Another comparison between cotton nightwear and the innovative Performance Sleepwear from Third of Life showed that Third of Life keeps the sleeper in a more favorable sleep climate for 71% (cool night) and 73% (warm night) of their sleep.
When comparing the heat and moisture maps at different times during the night, it becomes clear that Third of Life shows significantly lower moisture in the sleeping environment at the same temperature. This means the body can evaporate better and regulate its core temperature more effectively, improving sleep quality and nighttime recovery.
