My desk was at the end of my bed. The MacBook with sleep light was always on that. It was never bright at night. Dimming half a second after I turn the light off. Even if the lid was closed.
Oh, also, you can swap batteries of Macs during sleep if it has a removable battery, without losing state.
This is why Apple is Apple.
That era is long dead and gone, regardless of the current state of such a light.