The 'Bed Bugs' trial will see the stars attempting to stay in beds for the longest time possible, while being joined by sets of jungle creatures.
Similar to previous 'Bush Buddy' trials, the celebrities will receive a ranking, which determines the duration they have to stay in the beds. The higher their ranking, the less time they need to stay inside.
Whenever a celebrity is joined by a 'bed bug', their bush buddy will also be joined by the same creature.
Colin Baker announced to the group that the trial will take place overnight, with the five celebrities who accumulate the most amount of time in the beds avoiding being the first to leave the jungle.
In the last week, pairs have been competing in other Bush Buddy Challenges in order to gain an advantage in the final 'Bed Bugs' task, with Helen Flanagan and Limahl currently in first place.
The pair had 60 minutes added to the time they individually accumulate in 'Bed Bugs', with David Haye having 45 minutes, Hugo Taylor and Ashley Roberts with 30 minutes, and Charlie Brooks and Linda Robson with 20 minutes. The rest of the celebrities have no time added to their time after not competing in other Bush Buddy trials.
The stars randomly selected the names of a bug, and then decided which celebrity they should be paired with.
Eric Bristow and Nadine Dorries will be joined by scorpions and beetles, while Colin Baker and Rosemary Shrager will get soldier crabs.
Charlie Brooks and Linda Robson will receive crickets, with rats due to be sent in with Ashley Roberts and Hugo Taylor.
Finally, David Haye will be met with cockroaches, while Limahl and Helen Flanagan will be joined by snakes.
The task will be shown in tonight's (November 21) episode of I'm a Celebrity at 8.30pm on ITV1.