Tapas bars are a good suggestion. We were in Madrid in January and found restaurants that opened at 8 (which still may be too late for you).

If possible, go at least one day early to get over the jet lag. We both had difficulty on day one of our planned activities, I should have planned one day to get over jet lag.

I tend to over plan activities...that is, I plan so much that we can't possibly do it all when the time comes (I travel with my mother who has mild emphysema). I try to plan on what to drop if needed and tell myself not to feel bad about it. I figure I might make it back there one day, even if my mom probably won't.

The airplane ride and airport will be the worst part of the whole thing in my experience. I always take an extra Klonopin on airplane days but I can now get along without it on other days. The whole thing is so aggravating!

I hope you have a great time!!!