"That first win took some getting, but now we've got it, we can start playing like we know we can and take that nervousness away from our play," said Sedgwick.
"It's a massive relief. I thought we played really well in the first-half and then we had to grind it out in the second. It was quite a nervy performance in the second-half."
Preston have no fresh injury or suspension concerns, meaning manager Paul Simpson is set to name an unchanged side at Glanford Park.
They are still without goalkeeper Wayne Henderson (back) and midfielder Paul McKenna (groin).