On Friday 5 October hundreds of IT professionals will sleep out beside London's Tower Bridge for this year's Byte Night.
The ninth annual IT industry charity sleep out, which is supported by Computer Weekly, aims to raise £325,000 for youth homelessness charity NCH.
Last year 250 IT industry professionals slept out and raised £280,000. Participants this year have undertaken to raise £2,000 each, or, if in a company team, £5,000 from the team.
Since it was started in 1998 by IT public relations consultant Ken Deeks, Byte Night has raised more than £1.5m for NCH's work with the estimated 100,000 vulnerable children in the UK who do not have permanent homes.
Sleeping under the stars on the Embankment on Byte Night in relative security and convivial company is some way from the real homeless experience. However, it is a positive gesture by some of the most successful people in one of the most dynamic industries to highlight what homeless children have to endure.
And as one of the few occasions when IT users, suppliers and consultants get together to focus on helping the disadvantaged, it offers a useful networking opportunity.
Due to local authority-matched funding, every £1 raised by the Byte Night sleepers will result in £5 going to NCH.