Light first, sound second, or no sound at all
A sunrise light is a lamp on a long, slow timer. You set how early it starts, anywhere from five to sixty minutes before the alarm, and it climbs from dark to full over that whole window. There are three wake modes: light and sound together, sound alone if the light is not for you, and light alone with nothing audible at all. The third is the one people are usually surprised by, and the one that changes a household where two people wake at different times.
The evening half
The H03 does as much work at night as it does in the morning. Twenty-five sounds cover the noise colours, white, pink, brown and blue, plus rain, waves and the rest, and a sleep timer stops them on their own. Twelve night-light colours, each dimmable, and a sunset setting that fades down instead of switching off. Bluetooth covers anything the built-in list does not.
Size and power
Seven inches across, about 3.8 deep, under two pounds. It runs from a 5V 2A adapter, and if that adapter ever fails, the exact replacement is a nineteen-dollar part rather than a new clock. There is a backup battery compartment so the alarm survives a power cut.
What it is and is not
It is a lamp on a timer, and a pleasant way to wake up. It is not a medical device and we do not sell it as a treatment for anything. If your mornings are hard in a way that a nicer alarm will not fix, that is a conversation for a clinician, not for a product page.
The H03 is the only clock we make that does most of its work before it makes a sound. If that is not the problem you are solving, the other four lines on the front page of the Odokee range probably are, and the guide to light and waking is the one to read first.
Not medical advice. Sunrise lights and sound machines are consumer products, not treatments. Nothing here is medical advice; if sleep is a persistent problem, speak to a clinician.