Inspired by nature's sunrise, the Philips Wake-up Light uses a unique combination of light therapy and sound to wake you in a more natural way. The colour of the morning light changes from soft dawn reds through warm orange to bright yellow light.
Reddit mentions
“I’m far from an expert. The first one I tried is the one I’m still using ~7 years later. Philips SmartSleep Wake Up Light. It’s much more expensive now than it was 7 years ago. I’m…”
“A Philips Smartsleep Wake-Up light. Using light to harness your natural wake cycle and not waking up to the beeping of an alarm, even the gentler ones you can get on a phone, is…”