The Italian, who was subjected to taunts from the stands over his team's style of play during the campaign, told Vanity Fair that he feels "something is missing" since his move to England.
"For us Italians the call of home is strong," the 60-year-old added. "It has been a heavy year.
"I begin to feel the weight of distant friends and elderly parents I rarely see but at my age, I only make professional choices. I won't be able to work for 20 years. It's hard work, the bench."
Sarri coached Napoli before taking the Chelsea job but said he was not concerned that supporters of his former club might take a dim view of him potentially joining their northern Italian rivals Juventus as Massimiliano Allegri's replacement.
"The Neapolitans know the love I feel for them," he added. "I chose to move abroad last year and not to go to an Italian team. The relationship will not change. Loyalty is giving 110% when you are there."
(Reporting by Shubham Kalia in Bengaluru; Editing by Simon Jennings)
