Young Brunette Girl On The Floor Posing On The Mattresses

• Late 19th century: The box-spring is invented to distribute weight and act as a shock absorber, thereby lengthening the life of an innerspring mattress.
• 1926: Dunlop introduced a technology that turned vulcanized rubber sap into latex foam that became widely used until today as latex mattresses and latex pillows (hence the name Dunlopillo), at first it was only sold to royalties in the British Empire.
• 1930s: Innerspring mattresses and upholstered foundations become widely used, and artificial fillers become common. Encased coil spring mattresses, which consist of individual springs sewn into linked fabric bags, are introduced.
• 1940s: Air mattresses constructed of vulcanized rubber-coated fabric are introduced.