A run of four successive victories has taken Leverkusen to within eight points of Bayern at the top and three clear of third-placed Borussia Dortmund.
And if they can continue that run up to the turn of the year, it promises to be an interesting 2013.
"We are working hard to win these three games," said joint-coach Sami Hyypia, referring to tomorrow's [Saturday] trip to Hannover followed by clashes with Hamburg and Wolfsburg, the latter in the DFB-Pokal.
Hosts Hannover dropped to their lowest league position in over 18 months last weekend, but that is no reason for Leverkusen to expect an easy game at the Niedersachsenstadion.
"Hannover are very good at turning defence into attack and they have many fast players like Jan Schlaudraff," said Hyypia.
"He's a very good player. Their strength is certainly in attack and it's going to be a tough away game for us."
It may be made even more difficult by the weather, with heavy snow in recent days and more expected tomorrow.
"The pitch in Hannover is not so good, which is why it's not so bad that we train in similar conditions today and tomorrow [Saturday]," said Hyypia, whose side braved the snow in Leverkusen in preparation.
Coach Mirko Slomka, who will sit on the Hannover bench for the 100th time tomorrow [Saturday], is without several key players.
Karim Haggui is suspended while Lars Stindl has been ruled out for the rest of the year with a foot injury which requires surgery.
"Of course it's very bitter and I hope to be back as quickly as possible," said the midfielder, who will hope to return to training in time for the second half of the season.