UK Power sofa to convert to USA power sofa?

We currently have a UK power double recliner and would love to buy the matching sofa. We will be moving back to the USA at some point and wonder how hard it would be to convert the power supply over to USA standard? Impossible or not? I really would like to buy the matching set and take all back with me, but not practical if we cannot use it in the States. Thank you in advance!
Donna, November 2017