Galaxy s2 screen turns on by itself

I'm Running a Galaxy S2, with the AOKP milestone rom (JellyBean). Occasionally, the screen will turn on by itself (even when no user apps run in the background) after being turned off, light up, turn off and on again, it won't remained off for a long period of time. Needless to say it's annoying and battery draining. Rebooting doesn't always help, some times it goes away only to return a day or 2 later. Has anyone else encountered this issue with AOKP or other CyanogenMod based roms, and if so how you did addressed this? how should I fix this or disable this?