Lights are extremely powerful but people always seem to focus on only half the equation. Waking up to light is a million times better than waking up to sound. My lights dim and turn off around 9:30pm and turn on at 5:30 am and brighten until 6:00 am. I wake up without any grogginess at all. It's amazing.
Sleep as android's automation feature coupled with home assistant allows me to do things like turn on the lights when my alarm turns on (or offset by some time).