No. Leaving on a Thursday midnight PDX-DFW-SXM (originally through CLT), arriving 3:15 PM Friday. (Trying Baker's Suites for one night for the first time.) Departure is on a Friday with overnight in DFW (originally through CLT on same day).

And I learned last trip that if your overnight is less than a 12-hour stay, you can check your checked bags through to your home city. I really enjoyed having only my rollaboard to worry about on my overnight.