Stephanie - posted on 06/17/2009 ( 3 moms have responded )
I just did that last night! Instead of bottles, it was two sippy cups that we just bought. I started to sterilize the sippy cups around 10PM and fell asleep! My husband and I woke up around 1AM and the cups were melted. The kitchen and living room smells of burnt plastic. We aired it out last night, but, it still smells a little bit right now.