Infant beds can be converted into a daybed by the removal of one side. Nowadays, any type of curtained daybed or couch is known under this term. The principal item of furniture for a symposium is the "kline", a form of daybed. It is thought that the first blend of a chair and daybed originated in Egypt. The linkspring design provides support and creates clearance underneath a daybed for storage. The daybed was developed in Britain as part of the William and Mary style.