Abstract: Adjustable furniture having a seat and a back and a support component. Two mutually parallel elongate support members on said support component are each passing through a corresponding support sleeve and a downwardly extending slotted opening at the rear side portion of the seat. Said support members extend obliquely upwards at an angle with the horizontal plane of about 30.degree.. A rubber block located at the upper side portion of said slotted opening is providing a friction promoting support of said seat against the associated support member and simultaneously a resilient yielding spring effect between said seat and said support member.