UPDATE Potential work arounds for folks having problem in sleep policies not working correctly have been put in version 1.2.0 onwards. Please redownload to test and let me know. Read below for more details.
Latest Version: 1.4.4 (See below for change log history)
Are you frustrated by your downloads getting broken or worse, switching over to slow and expensive mobile data connections like GPRS/Edge/3G when your wi-fi connection gets dropped by your Android phone when the screen goes off? If yes, then look no further. Here is my app that allows you to choose your desired Wi-Fi Sleep policy. You can choose from the following options: