No tutorial sorry
In hibernation there may be things like wireless running depending on the app last used and its settings. Some apps are worse than others in this respect, those that are primarily designed for phones tend to wake up fairly regularly to check in to the network, the fact the PE and EE are not phones does not stop this and may in some cases make it worse because the app looks for the network longer.
To help with your problem I would suggest you have a good look at what you are restoring with an eye to the possibility that one of the apps is causing the problem you are seeing.
In some cases using the latest and greatest version of an app is not a good idea with our hardware. Some of the 'improvements' only cause problems because of the modified version of the android operating system we have.