The Welsh are down to the bare bones, with injuries plaguing the camp before the tournament and through their first two games of the competition.
However, the men in red have made a superb start to the World Cup with wins over minnows Uruguay in Cardiff and hosts England at Twickenham.
Even with their mounting injury problems, Edwards feels there won't be many stars rested for the Fiji game at the Millennium Stadium, before their final game against Australia.
He said: "I don't think we will be resting too many players.
"One thing you find out about Welsh teams, or any rugby team, is that when you get some momentum you want to keep that going.
"We do have quite a long turnaround between the Fiji game and the Australia game on 10 October, so the boys will get rested next weekend."