You can also download tap to sleep off the play store, then on Nova under setting set the double tap gesture and set the tap to sleep app as the action. And it works just like stock now.
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Droid Eris-Rooted, Romed, & Retired
Fascinate-Rooted,Romed,& Shipped back
Droid Incredible 2-Rooted,Romed, & Now Backup/Alarm Clock
Wife's X2-rooted,Romed,& now a music player
Samsung S3-Rooted-Unlocked-Romed=Pure Gold