Only short studies have been made of this lemur so far, and so relatively little is known of its behaviour and ecology (2). The nocturnal grey-backed sportive lemur sleeps during the day: in secondary forests, where large trees are rare, they roll into a small ball amongst foliage or on branches, but in primary forest they use tree holes (2). In some forests, they have even utilised purpose-made nestboxes put into trees (2). There is evidence to suggest that grey-backed lemurs return each night to a favourite sleeping place, often for 14 nights in a row (2). This largely solitary species feeds mainly on foliage, although they will also take fruit and bark (5).
Very few details of the breeding behaviour of the grey-backed sportive lemur are known (2). Females produce a single young between September and November (5).