Adjustable bed frame

An adjustable bed frame comprising:

• one or more structures, each comprising:
• a mounting unit;
• a first leg unit coupled or formed with the mounting unit at a first side of the adjustable bed frame, the first leg unit comprising a first sloped surface;
• a first support unit comprising first, second and third segments, wherein the first segment is rotatable with respect to the mounting unit, the second segment is pivotally coupled with the first segment, and the third segment has an upper portion fixedly coupled or integrally formed with the second segment and a lower portion abutting the first sloped surface of the first leg unit;
• and
• a first driving unit to rotate the first segment of the first support unit with respect to the mounting unit,
• wherein rotation of the first segment causes the third segment to move along the first sloped surface of the first leg unit, and abutting of the third segment on the first sloped surface of the first leg unit defines, at least in part, a slope of the second segment.