Just as a quick followup, we're aboard now. (Actually just returned from a very tasty dinner).
The bedroom has a single receptacle below the reading light at the top edge of the sofa, marked "Not for Hair Dryer or Curling Iron" - I don't know if that's due to power contraints, or not wanting to have a heating appliance near the furnishings.
By the sink, there's an additional double receptacle.
Not wanting to tease/test the single outlet by the couch, we're running everything off the receptacle by the sink. With two laptops, a chromebook, a hotspot, and two chargers going, I'd think we're drawing 500 watts, +/- 50. No issues whatsoever.