The DreamLight from Beurer is a gentle sleep aid developed to help you unwind and drift off to sleep naturally. Battery-powered, it projects a gentle, pulsing LED light on your ceiling to make you consciously aware of your breathing rhythm without illuminating your entire bedroom. This regulates your breathing, diverts overthinking and helps to reduce brain activity, so you can fall asleep calmly and more quickly. The art of guided breathing Your respiratory speed and rhythm can have an impact on your state of mind and level of relaxation. The SL10 offers 2 breathing techniques for you to practice without having to think about timing. The Relaxation Technique: 4 second inhale 6 second exhale The 4-7-8 Yoga Breathing Technique: 4 second inhale 7-second hold 8 second exhale Key features: Ball design with stand for easy positioning Red or blue pulsing light Touch on/off functionality Automatic switch-off function after 8 or 20 minutes Battery operated (x2 AAA batteries are included)