If you have a specific pattern in mind it would really help if we knew what it is. You might be dealing with pattern repeats that will have to be taken into consideration. It might be possible to work it in several sections then seam them together. Working a bedspread in one piece might get to be a bit much to handle.
Cheating is an option. . . . Cheaters never win and winners never cheat, but smart knitters who want to retain an iota of sanity do, cheerfully. ~~Kory Stamper