Insomnia App on Cydia?

[AndrewDude]

I use textplus and get regular notifications but when I use the Internet at school, I don't get any push notifications and have to open the app each time to and refresh to check. I'm guessing the Wi-Fi is turning off and that's the problem. If I'm wrong, can someone tell me what's wrong?

Will Insomnia help me in this situation? And if I leave it on for, suppose, 6 hours, how much extra battery will it consume approximately?

Thanks!