How long has she been doing this? Has she ever slept through the night?
What is her day time schedule? How much does she nap at daycare? What time are you both home in the evening?
When she wakes at midnight what do you do? Do you greet her with open arms and coo and play or do you tell her it is time to go back to sleep and lay her back down and leave?
Typical babies this age are certainly developmentally ready to sleep through the night. However babies that once slept all night do start waking again for many reasons; teething, learning a new skill (such as standing), separation anxiety (peaks at 10 mos. & again at 18 mos), knowing you will stimulate her, etc.
All human beings, including babies, wake during night time sleep. When you or I wake we don't even know it because we have learned to go back to sleep. When babies are experiencing the above mentioned things instead of soothing themselves back to sleep they will call for you.
So you see there are many things left unanswered for me to pinpoint the issue, but hopefully you can take my response and analyze it according to your situation. Feel free to pm me if you need further help.
I am not convinced that waking her a hour after you put her down will help, but you certainly could try it. I just do not think it is necessary. I have tried this with mine & it never worked. I just led to overstimulated & more sleep deprivation for us all. Nervousness is not caused by waking a baby. It is something entirely different.
A.