No, we need to know how the study defined them, not how you interpret them.

In medicine, sometimes semantics are more important than you think.

It did?

> Among nappers, we further defined napping intention based on the question “In general, were these naps planned, or did you fall asleep without meaning to?” Nappers who answered “naps planned” were classified as intentional nappers, and those who answered “fell asleep without meaning to” or “both (some planned/some not)” were classified as unintentional nappers.

Yet I intentionally nap in the chair when I become overcome with lassitude

Where do you nap when overcome with langour or ennui?

I'm going to guess a chaise and a settee respectively...