They are all smart beds, but they are not of the same brand. The brand of deep sleep code is Spanish. Their smart beds are said to be more advanced. Their beds are four electromechanical devices, and they are extremely silent. There are two beds of the same kind. It seems to be quite powerful, but we are not professionals? So I'm not sure what's the big difference. I can only say it's an analogy. What I can personally think of is the difference between ordinary cars and off-road vehicles. Four-wheel drive is definitely better.