Best divan for luxury holiday cottage

I am looking for a king sized divan bed for my holiday let. Most visitors are older, 50+ . I don't know how much they weigh, I suppose a mixture. I let for about 30 weeks a year, on a weekly basis. I don't want to spend a fortune, not thinking vispring standard but would like something that is up to the standard that people would expect for a fairly upmarket holiday let.