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Jan Denneman is Founder and Chairman of the Board at Good Light Group as well as Honorary Ambassador Global Lighting Association. We’ve been arguing for a while that quality darkness is essential to good sleep. Jan contends that good light during the day is also essential to our circadian rhythm for a good night's sleep.
Jan Denneman is Founder and Chairman of the Board at Good Light Group as well as Honorary Ambassador Global Lighting Association. We’ve been arguing for a while that quality darkness is essential to good sleep. Jan contends that good light during the day is also essential to our circadian rhythm for a good night's sleep.