Liz. Invisalign Trays No 6. Well I am actually half way through the 2 weeks of Trays no 6, and these have been the tightest yet, I have had a few short head aches but nothing lasting. After 7 days there still feel ill fitting and tight so I hope that these are starting to have some affect now. After a couple of sloppy days when I had them out for a few hours at lunchtime, I am trying to be more disciplined again….after all what is the point in spending a few thousand on these little bits of plastic if I am not going to wear them – stupid! I do now drink white wine with them in, so will have to see what the hygienist has to say when I see her in a couple of weeks. I still cannot see ANY visible change after 11 weeks of wearing these things, so can’t wait to get to Trays no 10 when I read that this is when it is likely that some progress should be seen. I envy those who have a quick fix but mine have a lot to do. I have compared Trays no 2 with Trays no 8 that I have been given already, and measure about a 1mm widening to the upper arch – a bit disappointing but must be patient.