Denise, there is nothing wrong with a snack before you go to bed, try 8-10 carbs before bedtime or a handful of nuts to steady your BS if you are not comfortable with where you are before sleeping. I will say that I can go to sleep with a BS of 140 and wake up in the 70's and then another night go to sleep at 100 and wake up at 110. I like Zoe treat 60 as a low. But you might not feel well at 70ish and I might not have any low symptoms at all. Everyone is different...keep testing. As you become more comfortable and familiar with your trends you will get your rest back.
15 grams for a meal is tricky...Is this what your doctor has suggested?
I would shop around for different breads. Do you have a Trader Joe's where you live? I buy sprouted wheat bread and it is 7 grams per slice. Make sure that you eat a protine and a fat with your meal to hold you over. There are also low carb tortillas.
EX. Sandwhich turkey or chicken breast, 1 or 2 slices of bread, 1/3 of an avocado on top, plus lettuce. (Protine, carb and fat all in one) add a side salad low carb and fat for dressing. If you have only one slice of bread eat cup fresh berries, plus your salad.
Stuff a meduium tomato with chicken or tuna salad, cut up cucumbers and add lettuce, scoop onto a slice of toast.... 15 grams is hard for a meal....I eat 15 for a snack.
Your children are to stinkin' cute btw.