I am doing a medium length Invisalign treatment, I think. I have 8 aligners on top and 14 on the bottom. My dentist told me to keep them out like 10 minutes per meal. I can't eat, brush, and floss fast enough! I am reading reviews from people saying they leave them out all evening if they are going out for the night. How long exactly do I have to keep my aligners out per day?