A Girls Night In event can be as simple as having a few friends over for a dinner or movie, although a group of Southern Highlands women have taken the event to the next level and will welcome 120 people to their sold-out event at the BDAS next week.

A night of canapes and champagne makes a change for organiser Jill Campey, who raised money for cancer last year by riding 200km.

"Ever since I lost my father to bowel cancer seven years ago, my family has been involved in raising money for cancer research and support in some way or another," Ms Campey said.

"I had seen the ads for Girls Night In in the past and thought it looked fun so my friends and I thought 'why don't we just do it'."

"Organising the event has been a really fun experience and a great opportunity for us all to get together," she said.

"There has been a great response from local Southern Highlands women, with the event selling out quickly through word of mouth. Plenty of fantastic local businesses such as The Hospital Shop are getting behind the cause and donating their time, services or products to help make the night a success."

Cancer Council NSW's Southern Region's Belinda Lamb said around 300 people volunteer to sell Pink Ribbon merchandise in southern NSW each year.

"In this region, it is predicted that, by 2016, 210 people will be diagnosed with breast or gynaecological cancer in a single year, with 44 deaths expected,"?she said.

Ms Campey said she would recommend a Girls Night In to anyone who has been affected by cancer and wants to do something positive to fight against it.

"It is always great to have an excuse for a night out with your girlfriends," she said.

To find out more about hosting your own Pink Ribbon Event or volunteering visit www.pinkribbon.com.au