Sleep timer suggestion

After setting a sleep timer I can´t see the remaining time. Can you add a countdown or similar? Thanks

Do you have a suggestion about where to show it in the app?

Yes! And to be consistent you have to do it like in the Mi Desk Lamp interface that have the pomodoro countdown.
Also please add the brightness and color temp for all yeelight products if posible. Look at the example here. (Open it to see completely)