Has anyone (SAD sufferers?) tried one of these 'sunrise' alarm clocks? The ones that wake you up with an increasing sunlight type brightness over a period of 20 mins or so. Apparently they can also play birdsong, running water sounds etc. The latter sounds like a recipe for disaster 
I can see models advertised by Lumie, Philips, Naf Naf and Sunrise varying from £20 to £120. Quite a price range so some advice or direct experience would be much appreciated.
The clocks are going back next weekend I believe!
Thanks in advance.

I can see models advertised by Lumie, Philips, Naf Naf and Sunrise varying from £20 to £120. Quite a price range so some advice or direct experience would be much appreciated.
The clocks are going back next weekend I believe!
Thanks in advance.