Hi,
I have a Move and from what I can remember this used to go into sleep after 30 minutes however it no longer seems to be.the case.
Previously I was able to go for a week without having to charge and now it needs charging everyday because it's not going into sleep mode and therefore running out of battery.
It will go into sleep when I push the button on the back but this is the automatic sleep after 30 minutes of inactivity that I need.
Thanks