PIP - You can press the up or down arrows to temporarily bring up a PIP window and type a channel number if you wish. Mediaroom also shows a PIP for the channel you're browsing in the guide while your current channel is in the background. If you're looking for full-time PIP, there's a customizable Mediaroom feature called Multiview, which requires Bell to develop an app. See this thread:
I'm not sure what the Sleep
command is - are you talking about programming the remote?