Bedsurfer

Adfonic, a European mobile advertising firm, says that not only are we not watching as much television in the evening as before, we're not even using the PC as much as we head to dreamland. Steadily increasing from 6 pm to a midnight peak, smartphone use appears to be the way we're lulling ourselves to sleep.
 
Adfonic found that many of these users are “bed surfers", apparently doing one last check of email or social networks instead of watching TV. The firm sees an advertising opportunity for mobile audiences in the evening that was once considered dead time for clicks.