John helped SHerlock up. He didn't want to wound Sherlock's pride by helping him up. He knew that Sherlock was still not recovered enough to get up the stairs himself. He slowly helped him up the stairs. He knew that the detective was still recovering.
"You'll be better soon enough." He told him.
He hoped that was true SHerlock had been injured badly. Even if he recovered pyhsically. He had no idea of Sherlock's mind. He knew it was wise for Sherlock to take as long off work ashe needed. He gets him upstairs and to the bedroom.
He knows they are just friends and that hes doing this to help Sherlock get better sleep.