Alarm Clocks
A lit clock face is a light source in a dark bedroom, which is why most people end up turning theirs to the wall and then reaching for a phone instead. Each of these solves that differently.
Sound activated displays stay dark until a clap or a nearby noise brings them up for a few seconds. Ceiling projection puts the time where your eyes already are when you open them, so checking it does not mean sitting up. Vibrating alarms add a physical alert for deep sleepers and anyone who sleeps with earplugs, where a tone alone is unreliable.
The rest of the bedside setup: sleep accessories covers sound machines and storage, and blackout curtains handle the light that wakes you before the alarm does.