The Blues' winless run in the Premier League stretched to three matches on Saturday as they were comprehensively beaten 3-0 by Arsenal.
Conte said: "I don't sleep, sure. I don't sleep. After this game, this defeat, it's normal for me not to sleep. Not only one night, but for two nights.
When I don't sleep, I reflect. And it's important to reflect.
"When you have a bad performance - we have a bad performance together, me first, my staff second, and then the players."