Do you consume lots of caffeine, or just sleep poorly? This Counting Sheep is a exercise, where you have to drag identical white sheep over the bridge (while they are doing backflips). The idea, presumably, is to induce boredom while occupying the mind with something simple, repetitive, and rhythmic, all of which are known to help humans sleep.

Changes:

+ App will not stay open all night anymore. When you stop counting for 10 minutes, you will be asked if you are sleeping and if you do not start to count again in 15 seconds, the app will end, so the device can sleep too. (tip by simzz)
+ Larger exit button (tip by TrillionChampion)
+ Semitransparent numbers

http://forum.xda-developers.com/showthread.php?t=716586