Hi, as a Type 1, the first question that arises is "Do you have type 1 diabetes?".
I'm not sure how you expect your survey to assist in improving sleep through social design, but it might help to better understand the population with which you are dealing. For example, your question about insulin looks like you've gone on to the NHS BSA website and pulled the list of delivery methods off it rather than listing actually prescribed insulins, and for example, your questions don't demonstrate any correlation between amount of sleep and sleep deprivation - you have assumed that everyone has some, when the reality is that many don't.
I think if I was you I'd go back and look at your subject matter, as I have to admit that I'm not sure how social change is going to enable a type 1 to sleep better.