Analysis of information sources in references of the Wikipedia article "Futon" in English language version.
In Japanese houses there are, as has been already stated, no rooms exclusively set apart for sleeping. The beds can be laid anywhere on the mats. The bed consists of one or two thickly-wadded mattresses of cotton or silk, usually three feet wide by about six feet long, that is, nearly the size of a mat. These are laid on the mats and over them a large, thickly-wadded cover of the shape of a winter kimono with open sleeves and a quilt, also heavily wadded, of about the same length as the bed but wider. They are both of silk or cotton, figured or striped, with linings of a dark-blue colour. They both have a black velvet band where the sleeper's face touches them. The two are used in winter; but in spring and autumn only one, usually the kimono-like cover, is thrown over the sleeper. In midsummer, even that is too hot, and is replaced by an ordinary lined kimono or a thinly-wadded quilt. The pillow for men is a long round bolster filled with bran; but women, whose coiffure would be deranged by such a pillow, lay their heads on a small bran bolster, two inches or so in diameter, which is wrapped in paper and tied on the top of a wooden support. It is very uncomfortable at first, though most women are used to it. As the bolster soon gets hard, the skin about the ear often becomes red and rough if one sleeps all night on the same side. Though the beds may be spread anywhere, their places are always fixed for the members of the family. The master and mistress sleep in the parlour or some other large room with the youngest children, the mother with the baby in her bed and the father sometimes with the next youngest in his. The rest of the children sleep either in the same room or in another and with some other member of the family, unless they are quite grown up. The sitting-room is usually left unoccupied. The servants sleep in a room next to the kitchen and the house-boy in the porch. It is important to group the sleepers as much as possible; for in summer when mosquitoes are out, nets are hung over the beds by strings attached to the four corners of the room, and to economise these nets the beds are brought together wherever practicable.
{{cite journal}}: Cite journal requires |journal= (help)