For me, naps are an exercise in lying still with my eyes open. Even more frustrating IMO. Am I winning the misery olympics?

This possibly sounds like being over tired. Are you able to fully relax at different points in the day, or would you say you are an always on the go type? If the latter it could be you have a sleep/relaxation deficit that the napping can't pay back.

Although mileage varies and all that.

> For me, a nap turns one normal day into two short days - a bright productive one and a dark groggy one.

Same here, but the productive one is after the nap!

My wife and I are the same way -- we never seem to feel refreshed from midday naps. Is there something we're doing wrong? :)