Double tap to sleep

I think I've noticed a few of you mention double tap to sleep in the DTEK60. Maybe I'm dense, but I can't find the option anywhere. Any help?

Tap any blank area of your homescreen.

Just double tap it quickly, round about the middle!

Originally Posted by Bla1ze

Tap any blank area of your homescreen.

Ah, that works. Have to be in the home screen. Still getting my brain switched back to Android...

Thanks.

Cool, I thought I got it to work once but couldn't duplicate a few days back. I'll give it a try!