Weekend nights

I am looking for childcare in Shannon for my two children they are 2 and 4. It would be at weekend nights for 12 to 13 hours a night .Sometimes an hour or two in the evening also. The max number of nights would be two and sometimes it would be just one. Between Friday and Sunday. There would be a break for a few weeks it wouldn't be every weekend. I need someone who is very reliable and willing to take this on as it is for work purposes. Someone is good with children and kind. Duties would involve putting the children to bed but they normally sleep the night and I have spare room for the childminder.