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We've become increasingly aware of how critical sleep is to our health, which has made many of us focused on the best ways to go about it. Now, experts have some advice for those trying to "optimize" sleep – and it doesn't involve any effort at all.

From a return to "simple" smartphones to timers that hide notifications, there seems to be a market for ways to disengage from our digital devices. This physical key from the innovative company Autonomous AI is the first I have tried, and I was doubtful.