Patent ID: 7971918

Claim:
A method of operation of an extendable sleeper for a tractor, the tractor being connectable with a trailer, the trailer having a front surface, the extendable sleeper comprising a fixed portion disposed on the tractor, an extendable portion attached to the fixed portion, the extendable portion being movable between a retracted position and an extended position, the extendable portion having an end opposite to connection between the fixed portion and the extendable portion, a gap between the front surface of the trailer and the end of the extendable portion, a mover operatively connected with the extendable portion for moving the extendable portion between a retracted position and an extended position, and a control system operatively connected with the mover for controlling operation of the mover, the method comprising the steps of: determining a minimum gap measurement; substantially continuously monitoring dimensions of the gap; and automatically moving the extendable portion to maintain the minimum gap measurement.