Is a 160x220 cm mattress wide enough for two people?
Yes. With a width of 160 cm each sleeper has 80 cm of personal space, the same as on a 160x200 mattress. The extra 20 cm is in the length, not the width. If you want more shoulder room, a wider mattress such as 180 cm is a better alternative. You choose the model that suits you: Pure, Spring, Original or Original Plus.