As far as "rest" goes, it helps to research the habitat of the parents. If they come from the tropics, they're likely to not need or want it. In that sort of climate, even with a monsoonal weather pattern, there's moisture (either some rainfall in the "off season" or dew or both) and "winter" temperatures are still fairly worm. If they come from higher latitudes (as well a higher elevations) such as the nobile-type, or lots and lots of other species from the Himalayas, south central China and southeast Asia, they'll get a bigger seasonal swing in both temperature and rain. But even those (I learned the hard way) don't want to go dry for very long - in habitat, they get a lot of dew even when it doesn't rain. (They don't get 10% humidity like sometimes happens where I live). In fact, I have found that very few orchids need to be really dry in winter - Catasetinae, and Mediterranean-climate terrestrials are the only ones that I truly keep dry in the "off season" , For the terrestrials, it's the summer that is dry. With more humidity (like in a greenhouse) maybe some of these others are happy with dry winters, but it's a continuum. Don't be too literal with the "instructions".
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