"We've earned that, the last few weeks we've been pushing hard and working hard, but not getting the rewards," Holt added.
"It's a big win for us in the sense we needed the three points on the board and to get it against Ipswich was fantastic."
Holt's treble was his first in a league game and took his Championship tally for the season to seven, after only finding the net four times in his previous 18 outings in the league.
"That's my first ever league hat-trick, and to do it in the manner and the game in which it came and in front of the Barclay is fantastic," he said.
"The goals have been coming, I've been unfortunate the last few weeks, I've had things blocked, things hitting defenders or the post.
"It's nice just to get the goals flowing again and hearing your name from the fans."
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