Cuddling
Sasuke didn't like cuddling, in fact he wasn't the type to do it. Howerver he loved it, when Sakura slept in his bed. When she was there, it was easier to fall asleep and Sasuke was able to sleep peacefully with her by his side. And when she was on the long mission without him, the bed seemed to be so uninviting and cold...
Sakura has never guessed that Sasuke was one of the types that like to cuddle. She understood that he himself wasn't awareof it. But every night he was the one trying to be as close to her body as possible. She hasn't told him that, because she had no intention on hurting his pride or stopping his habit.
It's not like she minded it anyway.