I worry a lot about night time hypos. My older daughter had 2 severe night time hypos last year where she convulsed and her BG was below 1.0. It was very frightening for her and for us as her parents. Whilst she cannot remember the convulsion, she says she remembers feeling ill and trying to cry out for help but not being able to. It is quite distressing. My younger daughter is also Type 1 but so far, thank goodness, this hasn't happened to her. I get up most nights to check their BG's and am quite good now at getting Lucozade down the throats of barely awake children! I cannot imagine them living alone or with flatmates who would not bother to check them (and why should they - it's a real responsibilty). Finding them 'dead in bed' (God forbid) in the morning is certainly something that goes through my mind on occasion.
Sometimes it's hard to see how everything will work out in the future, but I guess technology might come to the rescue.
Sue