Weird question: comfortable places to sleep in Havana, Matanzas and Santiago de Cuba?

I never plan to stay in hotels because I want to minimize my support for the dictatorship, but if my neck/back flares up I gotta sleep somewhere comfortable for one night. As long as bed/pillows are moderately comfy by US standards + I can get a little magic from the farmacia, I’m all good for the rest of the trip. I last had to resort to couple trips ago at the Melia Cohiba in Havana - but obvi Id prefer that money go to a casa particular. I also want to go see some people in the city of matanzas and Santiago and am clueless on bed situation there.

Anyone have names of casas in any of these 3 cities with good beds (generator for AC would be a plus) and if not, hotels in Santiago or Matanzas that have comfortable beds?