Don’t let anyone tell you that King Koil mattresses are cheap or off-brand. Certainly, they are cheaper than many other, well-known brands but that doesn’t mean they’re any less good. Quite often you get more with a King Koil mattress than you would with a more expensive counterpart. Also, just because the company may be less well-known than some other brands doesn’t mean they’re off-brand; the company has been making mattresses since 1898, longer than most.