Sleep improvement

with the right light at the right time

Sleeping is just as important as nutrition and exercise

Good sleep is incredibly important to health. It’s just as important as eating healthy and getting plenty of exercise. Unfortunately, our Western lifestyle disrupts the natural sleep rhythm. We sleep less today than in the past and the quality of sleep has also declined. Artificial light has stretched the day and taken regularity out of the waking / sleeping rhythm.

30 minutes blue light on after waking up
30 minutes block blue light before bedtime


The rhythm and the successive blocks of time with which we may or may not perceive blue light is the key to good sleep. This rhythm can be adjusted by applying 30 minutes of blue light (daylight) in the morning and filtering blue light in the evening, 30 to 45 minutes before going to sleep. Of course there can be other reasons for poor sleep. When a good sleep / wake rhythm cannot be achieved with light therapy, the cause is often much deeper on a medical or psychological level. Then consult your attending physician or expert.


* Short sleep increases the risk of weight gain and obesity.
* People who get enough sleep usually eat fewer calories.
* Good sleep for better memory and concentration.
* Good sleep improves physical and sports performance.
* Less than 7-8 hours of sleep is associated with an increased risk of heart failure.
* With poor and short sleep, there is an increased risk of type 2 diabetes.
* Depression is strongly related to poor sleep and sleep disturbances.
* Sleep improves the functioning of your immune system.
* Sleep deprivation reduces our emotions and makes social interaction difficult.
* Poor sleep increases the risk of infections.


Propeaq light therapy is based on scientific studies in which the conditions for optimal performance and sleep are investigated. We have translated these insights into patents that have been incorporated into our innovative products. Our involvement in research is in our DNA. We are involved in the BioClock, a consortium of Dutch knowledge institutions and companies. Led by Bert van der Horst, Professor of Chronobiology and Health, a team of researchers from Erasmus MC, TNO and RIVM will quantitatively map the disruption of the biological clock caused by night work. Van der Horst: ‘In a study among sailors of the Volvo Ocean Race we found candidate biomarkers with the same degree of disruption of the sleep-wake cycle as in night workers. These biomarkers provide a unique basis for developing personalized schedule, nutrition and blue light advice to reduce night work-related health risks. ‘

The VieCuri Medical Center in Venlo is researching the use of Propeaq light glasses and is looking at whether blue light has an effect on the day-night rhythm. It is being investigated whether this has a positive effect on fatigue and alertness complaints. Jos le Noble is one of the initiators of the project and a doctor in the Intensive Care Unit: “We hope that with these glasses care providers will experience fewer complaints during night shifts, fewer people will become ill, people will enjoy their work more and the quality of work will improve improve.”

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