While authorities have drawn straws over who should uproot Martin Place's homeless encampment its residents have slept uneasily, fearing an eviction and an uncertain future.

"What the powers-that-be have done is put fear into one of the most marginalised groups in Australian society," Camp organiser Lanz Priestley said late on Saturday.

"There is a fear in the camp that something is going to happen, whether it's the police, state or local governments," he said.

Police Commissioner Mick Fuller and NSW Social Housing Minister Pru Goward urged Sydney City Lord Mayor Clover Moore to resolve the issue at crisis talks on Friday.