Complex sentence: It's Hanna's 16th birthday and Knepler makes her breakfast with egg and waffles, and lets her listen to some music, which she has not had access to in the forest.
Split into simpler sentences: It's Hanna's 16th birthday and Knepler makes her breakfast with egg and waffles. He also lets her listen to some music, which she has not had access to in the forest.