I haven't had a hypo in quite a while but I used to suffer them frequently. I'm type 1. I used to measure my BG about every 2 hours, even at night. I drink at least a litre of water during the night to ensure I wake up. I pay attention to how I feel and now I know when I am heading too low. Then I eat some fruit and in about 15 minutes feel normal. If I am out I always have a small container of white sugar with me and a piece of fruit (a mandarine/orange, some apple or half a banana). If I feel I am going low fast, I put a small amount of sugar on my tongue and consume that. Then I eat the fruit. If I am going to be out for several hours I also take cheese with me and eat that after the fruit. To avoid hypos I have fruit before I go out and normally during the day, a small amount after breakfast, some in the mid-afternoon, some before bed and every time I wake at night (2 to 3 times thanks to all the water). It's best to avoid hypos and then you avoid the consequent high. Hope this helps.