I have extreme insomnia due to heartburn?

What can I do to stop it ? I barely got any sleep last night . My neck started to hurt as well . The only way I fell asleep is when exhaustion took over . I slept on the couch and I sit upright . antacids only are temporary , I need something that will last all night . I'm going to see the doctor tomorrow , I just need to get through the night . Please help !