Volunteers are being asked to sleep out on local streets to help raise awareness of homelessness.
The event, on November 21, will also raise money for Perth charity Churches Action For The Homeless (Cath), which supports and promotes a number of programmes in the area.
Participants will spend the night on a pavement outside St John’s Kirk.
Each team will be expected to hit a fundraising target of £250.
Amanda McLaughlin, of Cath, said it was the third successive year the event had been held and organisers were hoping for a large turnout to help spread the word about the group’s work.
For more information, visit cath-org.co.uk.