Hundreds of people are expected to take part when Aberdeen joins the Big Sleepout campaign to end homelessness later this year.
The event in Duthie Park will take place at the same time as other sleepouts in Dundee, Edinburgh and Glasgow.
Nearly 9,000 people took part in last year’s event in Edinburgh’s Princes Street Gardens, raising more than £3.6 million for the homeless.
Organised by charity Social Bite, participants will experience a night of sleeping rough in December.
This year, singers KT Tunstall and Amy McDonald will entertain the hardy souls taking part – flying by helicopter to perform at each of the four host cities.
Author Irvine Welsh will also write a bedtime story that he will perform in Edinburgh and which will be broadcast to the other three cities.
Last year Liam Gallagher, Deacon Blue, Amy Macdonald and Frightened Rabbit all played acoustic sets at the event in Edinburgh.
No tickets will be sold for the December events. Instead, members of the public and businesses can take part by reaching fundraising targets.
This year’s Edinburgh Sleepout will again take place in Princes Street Gardens, while the Dundee event will be in Slessor Gardens.
The Glasgow Sleepout will take place at the bandstand in Kelvingrove Park.
Social Bite is a social enterprise which runs sandwich shops in Aberdeen, Edinburgh and Glasgow. Customers can pre-pay for food for the homeless and around a quarter of its staff are from homeless or severely deprived backgrounds.
It has been such a success it has attracted interested from Hollywood celebrities George Clooney and Leonardo di Caprio, who have both visited its premises in Edinburgh.
The first Sleepout in 2016 attracted about 300 chief executives from businesses, academia and other high-profile Scots sleep in Princes Street Gardens.
Money raised at the event helped build the Social Bite Village, which provides accommodation for homeless people for up to 18 months so they can rebuild their lives and find a permanent place to live.
The Big Sleepout was extended last year with nearly 9,000 people braving sub-zero temperatures to take part. Celebrities who took part included Sir Bob Geldof and Sir Chris Hoy.