Return to last opened window after sleep

[unknown_g]

Does anyone know of a setting that will allow you return to the last opened window after the touch has gone to sleep? For example, I'm reading emails, I put the phone down for a few min. When I come back I have to power it back on, and it takes you to the today screen. Then I have to use the Quick mean to go back to the emails. Not to bad but I'd prefer it to go back to the email screen which was the last window I was in.