What is a 90×190 cm mattress and who is it for?

A 90×190 cm mattress is a compact single mattress measuring 90 centimetres wide and 190 centimetres long. It is 10 centimetres shorter than the standard 90×200. This size exists primarily because many older and smaller bed frames were built to 190 cm in length rather than the current standard of 200 cm. It is a practical solution for anyone replacing a mattress in an existing 90×190 bed frame, as well as for children's beds, teenagers' beds, and guest beds in compact rooms.