A modular lower lobe passenger rest cabin comprising: exterior cameras; a first longitudinally oriented passenger rest compartment configured to accommodate a passenger of an aircraft in a substantially prone position, the first longitudinally oriented passenger rest compartment comprising a display surface in data communication with the exterior cameras to provide a virtual window; a first partial passenger rest compartment, the first partial passenger rest compartment defining a first portion of a second longitudinally oriented passenger rest compartment configured to accommodate a passenger of an aircraft in a substantially prone position; and at least one angled passenger rest compartment configured to accommodate a passenger of an aircraft in a substantially prone position, each of the at least one angled passenger rest compartments comprising a display surface in data communication with the exterior cameras to provide a virtual window, wherein: the first partial passenger rest compartment is disposed to align, in use, with a second partial passenger rest compartment of a second modular lower lobe passenger rest cabin such that said first partial passenger rest compartment and said second partial passenger rest compartment of the second modular lower lobe passenger rest cabin together form said second longitudinally oriented passenger rest compartment; and the modular lower lobe passenger rest cabin is configured for disposition within a cargo handling system of an aircraft. a first longitudinally oriented passenger rest compartment configured to accommodate a passenger of an aircraft in a substantially prone position, the first longitudinally oriented passenger rest compartment comprising a display surface in data communication with the exterior cameras to provide a virtual window; a first partial passenger rest compartment, the first partial passenger rest compartment defining a first portion of a second longitudinally oriented passenger rest compartment configured to accommodate a passenger of an aircraft in a substantially prone position; and at least one angled passenger rest compartment configured to accommodate a passenger of an aircraft in a substantially prone position, each of the at least one angled passenger rest compartments comprising a display surface in data communication with the exterior cameras to provide a virtual window, wherein: the first partial passenger rest compartment is disposed to align, in use, with a second partial passenger rest compartment of a second modular lower lobe passenger rest cabin such that said first partial passenger rest compartment and said second partial passenger rest compartment of the second modular lower lobe passenger rest cabin together form said second longitudinally oriented passenger rest compartment; and the modular lower lobe passenger rest cabin is configured for disposition within a cargo handling system of an aircraft. the first partial passenger rest compartment is disposed to align, in use, with a second partial passenger rest compartment of a second modular lower lobe passenger rest cabin such that said first partial passenger rest compartment and said second partial passenger rest compartment of the second modular lower lobe passenger rest cabin together form said second longitudinally oriented passenger rest compartment; and the modular lower lobe passenger rest cabin is configured for disposition within a cargo handling system of an aircraft.