ScienceLearning to sleep betterTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience04/11/2020April 11, 2020A good night's rest requires quiet and darkness. That is rare in urban areas, which is why many city dwellers have sleep disorders. A special seminar provides a relaxing atmosphere for sufferers, and teaches them techniques for sleeping soundly.https://p.dw.com/p/3DSPIAdvertisement