Hi Chausson. What size do you need as my son in law has one that he does not use or If you want a new one go into Ebay and type in "breathable ground sheets" you will find a lot of different sizes,colours etc and they will post to Ireland . Hope this helps.
If you want to get it sent to me to save on postage to the South ,feel free to pm me and I will give you the details Cheers Willie.