They do not lie.

Often mattress manufacturers produce simple hard mattresses with orthopedic label. They do not lie. Hard mattresses can perfectly support the body, and if they support the body, why not consider them orthopedic and sell more expensive? Sometimes it happens that a very expensive bed can be sold as orthopedic, although it is the orthopedic properties of this bed that will be similar to the properties of the mattress for 20 thousand rubles. The rest of the amount can be added to the cost due to the functionality (for example, heating or lifting mechanisms and t. p.).