Back to Reality housemate Craig will face the latest charity challenge this evening.

In a take-off of Channel 4's Shattered, Craig will be taking part in a game called 'Knackered' which will involve him staying up between midnight tonight and 4pm tomorrow (Friday) afternoon.

During the time period, the phone across street will ring intermittently. Craig will be given a question about one of the other people in the house and has one minute to go and wake them up, get the answer, and return to the phone with it.

Craig will learn of his challenge at 7pm tonight.