Real head to Old Trafford on Tuesday for the Champions League second leg and Pepe is confident they can overcome the 1-1 home draw and move past the tearaway Premier League leaders and into the quarter-finals.
"We have hit our best form. Apart from (Iker) Casillas we have everyone available and the manager has great solutions on the bench," Pepe said.
"We have achieved two important victories given the form and quality of the opponent we were playing and that gives us great motivation for the Manchester United game.
"We are happy and now we need to rest and think about the game on Tuesday."