My nice Bug DAB alarm thingy is brilliant. Sadly now discontinued. You can separately set the brightness for the clock and display when switched on from off, to barely visible, medium and 'Oh God my retinas!'. It also has 2 alarms, so I can have a buzz then a radio, or 2 radios coming on an hour apart. The screen is also on one of those boingy braided steel moveable things, like some lamps - so you can bring it close to your eyes if they fail to open properly in the morning.
It also theoretically plays (and records) to SD cards. But it's so picky about which ones it'll accept, and changeable in this, that it would be an incredibly unreliable way to wake up.
The teasmade on the other hand has a sensor to change the clock back-light depending on ambient light. It varies from as bright as the midday tropical sun to "ve have vays ov making you talk!" spotlight in the face. I have to rest a book against it at night. And I used to sleep with the curtains open and a streetlamp directly outside - which I can't now living in a ground floor flat.