The Bayern boss eased the pressure on his side by approaching the pre-match presser light-heartedly, but assured fans he has been doing extensive homework ahead of the clash
The Bavarians currently dominate the Bundesliga with a 20-point lead over second-placed Borussia Dortmund, while the Bianconeri are in a comfortable position as well, topping Serie A with a nine-point advantage over Napoli.
And Heynckes has insisted he is aware of the threat awaiting them when they meet Antonio Conte's side on Tuesday, and expects an exciting encounter between two European giants.
"I went to bed last night with the Old Lady [Juventus] and I woke up with her," the 67-year-old told reporters at the pre-match press conference.
"I did a lot of research about her, I studied recent games she's played and I was impressed with what I saw.
"It will be a game of high quality with two equal teams. It will be very intensive and with lots of power.
"Juventus are one of Europe’s top teams. On the one hand they are very Italian, but on the other there is a lot of creativity and fantasy in their squad."
He then pointed out the qualities and the rich history of the illustrious Italian club, and spoke highly of their trainer Antonio Conte's work since his arrival in 2011.
"They are physically extremely strong and they are able to run a lot. Juventus are like a myth. They came back like a phoenix," he continued.
"It is a team with a lot of tradition and one of the top clubs in European football.
"Antonio Conte has done many things very well during the last few years.
"He obviously has many good qualities as the team is playing so successfully. The team carries his handwriting."
Bayern Munich against Juventus will kick off on Tuesday, April 2 at the Allianz Arena.