Hello @gillS and a warm welcome to the Community Forum
As @Debbie-L mentioned, there are sitters that prefer varying lengths of sits and short and long sits are both very popular! I have attached a thread regarding this that you should find helpful.
Also, remember you can use the spyglass symbol at the top of the page next to the TrustedHousesitters logo and search for any questions that you may have as they have most likely already been answered on here and of course if not then please just ask!
I have attached a link and a thread that you should find helpful whilst confirming your first sitter/s.
Also, I have attached a thread below, it would be great if you could join in with this as we think you could offer great feedback and your input would be a great addition