On November 11, we began using a homemade artificial pancreas known as Loop to manage my son's T1. All of the code is online. It is *extremely* DIY so is not for the faint of heart but if you are a computer programmer, engineer, or even just the type of person to do your own taxes and repair your own appliances, it might be for you. https://github.com/LoopKit/Loop The system uses an older medtronic pump that accepts remote commands (got mine as a trade for dexcom sensors on facebook), an iPhone app (same phone he already uses for dex) and a little widget that translates bluetooth signal to a radio frequency the pump can understand. The app does not give boluses but rather performs a calculation of BG (via Dex), IOB, COB (you enter carbs when eating), and BG *momentum* and adjusts basal up or down using 30 minute temp basals (sometimes it will cancel and set a new temp basal every five minutes as it recalculates!) to get you back to target at the end of DIA. All of your settings are in the Loop app as well as the pump so if Loop fails you fall back to conventional pump therapy. Nights worked right off the bat but we are still fiddling with days because Loop manages carbs much differently than we're used to - and basal testing is a no go for my son (age 9). A1c will probably not be lower this quarter but I feel like a new woman, and my son surely is seeing the benefits of uninterrupted sleep as well. Happy to answer questions.