Sleepless in SMS

This is the title of the study: The Effects of 884 MHz GSM Wireless Communication Signals on Self-reported Symptom and Sleep (EEG)- An Experimental Provocation Study
Now, the "TEO884MHZGSMWCSOSSS(EEG)-AEPS for Idiots" : If you don't shut off your cellphone while sleeping, you will not sleep much. Or you will have headaches after. It's not even the messages, it's the signal.