But remember even in sleep mode the battery is running. If you use it daily and charge it often that's is good idea, but if you don't (and I don't know the time frame) you may find the battery dead drained and depleted. I had a tablet that I put in sleep mode, and one day that was the end of it. Battery was dead and no amount of charging was able to recover it. Had to put new battery in. I rather turn off a product wait 10 seconds and get more life out of a device than constantly leave it on and risk killing it. Cell phone are one exception but constant charging them also kills the battery too.