Sometimes people need time to consider new information or ideas. Mediations are typically held over a day or a few days. If you have attended a mediation and decide that you do want to settle after the mediation, most mediators will agree to help the parties communicate.
If you have a lawyer helping you then make sure to speak with them about what you would like to do and why you have now decided you would like to settle.
It is not unusual for people to settle their disputes in the weeks following the mediation.