The England boss believes the lucrative nature of club football means teams no longer want to risk sending players on international duty, but Mancini thinks this would not happen if players were given time to rest.
The Italian said: "I think that in England you need to have a break in December for the national team because we play a lot of games.
"The moment that they decide to give players one week off in December it will be good for the teams and national team."
While Hodgson also expressed his concern that City and Chelsea are travelling to the United States after their domestic seasons end in May, Mancini is worried about the workload of his players - many of whom will have to report for international duty on their return.
"It is incredible. These players don't have the time to recover very well," he said.
"When we finish the championship, we go for one week in New York and after they come back there are some players that play in the Confederations Cup and qualification for World Cup.
"I think that is incredible."