Eastern pygmy possums are very small, weighing from 15 to 43 grams (0.53 to 1.52 oz) and having a body length of between 7 and 9 centimetres (2.8 and 3.5 in) with a 8 to 11 centimetres (3.1 to 4.3 in) tail.
They are dull grey above and white below, with big, forward pointing, almost hairless, ears and a long prehensile tail, with thick fur at the base that becomes sparser towards the tip.
They have long whiskers, and a narrow ring of dark fur around each eye.

The eastern pygmy possum is an active climber.
It uses its brush tipped tongue to feed on nectar and pollen, especially from Banksia, Eucalyptus and Callistemon species.
It also feeds on insects, and will eat soft fruits when flowers are not available.
It is a largely solitary animal, sheltering in tree hollows and stumps, abandoned bird nests, and thickets.
During winter it spends time in torpor.

They are nocturnal, and, although generally thought to be solitary, have been reported to share communal nests, and to be seen in groups of two or more adult individuals.
Males occupy home ranges of 0.24 to 1.7 hectares (0.59 to 4.20 acres), which overlap with each other and with the smaller, 0.18 to 0.61 hectares (0.44 to 1.51 acres) ranges of females.
Eastern pygmy possums are very small, weighing from 15 to 43 grams (0.53 to 1.52 oz) and having a body length of between 7 and 9 centimetres (2.8 and 3.5 in) with a 8 to 11 centimetres (3.1 to 4.3 in) tail. They are dull grey above and white below, with big, forward pointing, almost hairless, ears and a long prehensile tail, with thick fur at the base that becomes sparser towards the tip. They have long whiskers, and a narrow ring of dark fur around each eye.
The eastern pygmy possum is an active climber. It uses its brush tipped tongue to feed on nectar and pollen, especially from Banksia, Eucalyptus and Callistemon species. It also feeds on insects, and will eat soft fruits when flowers are not available. It is a largely solitary animal, sheltering in tree hollows and stumps, abandoned bird nests, and thickets. During winter it spends time in torpor.
They are nocturnal, and, although generally thought to be solitary, have been reported to share communal nests, and to be seen in groups of two or more adult individuals. Males occupy home ranges of 0.24 to 1.7 hectares (0.59 to 4.20 acres), which overlap with each other and with the smaller, 0.18 to 0.61 hectares (0.44 to 1.51 acres) ranges of females.
Eastern pygmy possum