iPhone · HomeKitYour body keeps time by light. An alarm in a dark room skips that step and starts the day with a jolt. Sunrise Sync puts the light back. Half an hour before you wake, the bulbs you choose begin a slow sunrise. They stay warm and amber for the first twenty minutes, then turn toward clear daylight.
Twice a year the clocks jump an hour in a single night, and everyone's sleep pays for it. Sunrise Sync sees the change coming in your time zone and starts thirty days early, moving your wake time two minutes a day. By the time the clocks change, your body has already made the shift.
There's a breathing practice built in, too. Start a session and your lamp brightens for five seconds while you breathe in and dims for five while you breathe out. That's six breaths a minute, the steady pace used in heart-coherence breathing.
A real sunrise
Thirty one-minute steps take the bulb from its warmest glow (about 2,500 K) to daylight (about 7,100 K). Brightness eases in slowly, the way dawn does.
Clock-change glide
Sunrise Sync finds the next daylight-saving change in your time zone and moves your wake time two minutes a day for the thirty days before it.
Breathe with the light
Heart-coherence sessions of thirty slow breaths, five seconds in and five out, paced by your own lamp.
Built on your home
Sunrise Sync uses HomeKit. With a home hub, the sunrise runs from the hub on time, even while your phone sleeps.