Spring mattresses

Spring mattresses are based on a metal frame with springs of varying rigidity. They are made in different models - for single, one-and-a-half and double beds. All models are double-sided. Over time, the springs wear out and lose their rigidity. In order to prevent the surface of the mattress from wearing out, special mattress covers are used that also do not allow moisture to pass through. Double-sided mattresses https://brionexi.ua/ru/matrasy/pruzhinnye-matrasy/ are advisable to sometimes turn over so that only one side does not wear out.