Female kitten names any ideas?

I adopted two kittens they are both female and one of the two is grey and white and we named her stormy. But then I have a black kitten and she is really mellow and likes to sleep a lot and she is a tad smaller than her sister stormy. Lots of people name their cats shadow or midnight etc.. but I wanted to name her by her personality. I just don’t have any ideas though. Any help would be greatly appreciated!! here is picture of what she looks like: http://jcfields.files.wordpress.com/2009/08/black_kitten1.jpg