Did that once with an eGo. It blew up in the kitchen at 1:30 am. I thought I got shot, not to mention the flames and the mess!! Never again!!!And leaving it in the charger while you're sleeping?????? Risky! What if it overcharges, does a "runaway," and blows up while you're asleep? I used to charge mine at night too, but a lot of very smart people here explained to me that that's a really bad idea, unless you just really want to burn down your house.
Andria