You had a wake lock from some of these apps most likely.By removing them, you just eliminated it.

In general it seems that some apps that need to wake the device for a brief period and update some data are causing these issues on KitKat due to not being optimized for it yet.
Mental issues lead to the use of long signatures

Care much for receiving Thanks?Bitching at the others about it doesn't help, instead better stfu and gtfo.