Hiddink told chelseafc.com: "It was good to hear after the last whistle the public applauding a team losing at home, that's rather curious but I understand it because of the salvation for the Premier League.
"Tremendous atmosphere, it is a good club, tremendous support applauding not winning. It's a signal the people support it very much and it's nice to have that experience.
"I think the approach from our side was serious and it should be like that. It was an honest game, because we knew they had to get one point for being safe, although you could expect other favourable results for Sunderland elsewhere.
"We had a good game, some periods a little bit sloppy when they made it 1-1 but overall I think we dominated control of the game rather well."