Exclude sidebar from a single page?

Hello, Currently my Layout Options has the Default Layout set to Content, Primary Sidebar. I was wondering if it is possible to exclude a single page from this setting so that it does not display the sidebar? My site - http://www.shestyln.com.au Page I wish to exclude the sidebar - http://www.shestyln.com.au/admin/ (password protected but can be removed is necessary).