There was no crew rest position in the Australian manufactured Lincoln Mk 31 nor the Mk 30 either. You used your parachute or Mae West as a pillow (very uncomfortable) and bunked down on the metal floor, wherever you could fit in. Usually against the main spar which is adjacent to the signallers position. The smell of petrol emanating from the vicinity of the fuel cross-feed cocks was most unpleasant. Alternatively you could try to sleep on the fuselage floor near the rear entrance door or even in the rear gun turret. where you had no choice but to sit on the gunner's seat and doze off with your face between the two 0.5 calibre Browning machine guns.. Wherever you chose, the noise from four Merlins was debilitating; especially on long flights.