All members sleep together in a nest made out of shredded bark in a tree hollow , anywhere from NUMBER@1 to NUMBER@2 metres above ground level and roughly in the centre of a territory of NUMBER@3 to NUMBER@4 square metres , which they defend actively .

They sleep together in a nest made out of shredded bark in a tree hollow . They have a territory of up to NUMBER@4 square metres , which they will defend from other possums .
