WidthThere should be one personminimum 120 cm, i.e. the ideal double bed is 240 cm. Height It should correspond to the level of the sleeping person's knees. It is believed that low beds are for young people, and the older we are, the more preferable a high bed is. Mattress Comfortable - with a summer silk and winter wool side, it can be turned over depending on the season. Headboard The bigger the better. The headboard of the bed is subconsciously perceived as a shelter. With a tiny headboard, you can feel unprotected. This also applies to fashionable "hanging" beds, where it seems like there is no ground under your feet.