Kit Harington checked into a rehab facility in the U.S. to be treated for stress and alcohol use as the last season of Game of Thrones was airing.

The 32-year-old British actor arrived at the luxury Privé-Swiss wellness retreat in Connecticut a month ago, sources told the New York Post.

Harington, who starred as Jon Snow on the show for eight years, was reportedly undergoing treatment as the Game of Thrones finale was airing.

His publicist confirmed to DailyMail.com that he had checked into the facility.

'Kit has decided to utilize this break in his schedule as an opportunity to spend some time at a wellness retreat to work on some personal issues,' his publicist said.

Game of Thrones star Kit Harington, 32, arrived at the luxury Privé-Swiss health retreat in Connecticut a month ago, sources told the New York Post

He has been open in interviews during the long-running series about how the show has affected him and catapulted him to fame alongside co-star Emilia Clarke

Privé-Swiss wellness retreat, Connecticut Opened in 2008, the private mental health clinic offers specialized programs for PTSD, bipolar disorder, depression, anxiety, executive burnout and drug addiction. Their luxurious Connecticut retreat is just two hours drive from New York. Their 'Independent Intensive Program' involves a week staying at the Water's Edge Resort - a stunning beach resort in Westbrook, CT, including five-star suites, a spa and fine dining. The week-long program incorporates 60 minute sessions of CBT (cognitive behavioral therapy), art therapy, massages, yoga, meditation, as well as time with a clinical psychologist. Advertisement

The facility, which costs more than $120,000 a month, teaches its clients how to deal with stress and negative emotions.

A source claiming to be a friend told the Post that Harington was at the facility 'predominantly for stress and exhaustion and also alcohol'.

Harington is allowed to come and go from the extremely private facility near the small town of Madison.

News of his check-in to rehab comes a year after the Briton was so drunk at a New York City bar that he had to be dragged out by staff.

The Jon Snow actor was filmed arguing with bouncers and patrons after trying to take over a game of pool in the cozy neighborhood pub Barfly.

He was reportedly physically restrained by members of the public, then shown to the door by staff and thrown out.

However the actor - who reportedly made $500,000 per episode in the show's final series - later returned to settle his tab and left a generous tip, bar staff said.

Footage from January last year shows Harington leaning over a pool table in a crowded NYC pub and yelling unintelligibly in a drunken stupor. Bouncers and patrons are seen reeling him back as he struggles

Game of Thrones fans spotted Harington in the small town on the same day the GoT finale aired on May 19.

He was seen buying books at the RJ Julia Booksellers in Madison and told staff at the time that he was there on vacation.

His wife and former GoT costar, Rose Leslie, is said to supporting him.

'His wife Rose is being extremely supportive. Everyone close to him really wanted him to get some rest. Right now, he just needs peace and quiet,' the source said.

In a two-hour documentary released by HBO after the finale, behind the scenes footage showed Harington tearing up when he learned that his character would kill his on-screen love Daenerys Targaryen

The Privé-Swiss health retreat, which costs more than $120,000 a month and is near the Connecticut town of Madison, teaches clients how to deal with stress and negative emotions

His wife and former GoT costar, Rose Leslie, is being 'extremely supportive', sources told the New York Post

The end of the long-running HBO hit series reportedly struck Harington hard.

He went from virtual unknown to world stardom following his role in the series, in which he played the role of the courageous Snow, whose actions in the final episode were one of the show's biggest shockers.

The finale attracted a record 19.3 million viewers in the U.S. alone.

He has been open in interviews during the long-running series about how the show has affected him and catapulted him to fame.

Harington admitted to breaking down in tears during the table read for the final season, as well as when he wrapped shooting for the last time.

In a two-hour documentary released by HBO after the finale, behind the scenes footage showed Harington tearing up when he learned that his character would kill his on-screen love Daenerys Targaryen (Emilia Clarke).

'My heart is breaking. I love this show more than anything. It has never been a job for me, it's my life,' he said in the documentary when his final scene was filmed.

In addition to breaking down during the table read for the final season, Harinton has also said he got emotional when he finished shooting his last scene

Harington, who starred as Jon Snow on the show for eight years, was reportedly undergoing treatment as the Game of Thrones finale was airing

Harington revealed in an interview with Variety in March that he sought therapy at the height of his GoT fame and was vulnerable following his character's brief death at the end of the show's fifth series.

'My darkest period was when the show seemed to become so much about Jon, when he died and came back,' Harington said.

'I really didn't like the focus of the whole show coming onto Jon - even though it was invalidating my problem about being the weak link because things were about Jon.'

'When you become the cliffhanger of a TV show, and a TV show probably at the height of its power, the focus on you is f***ing terrifying.'

He went on to say that the period wasn't a 'very good time' in his life.

'I felt I had to feel that I was the most fortunate person in the world, when actually, I felt very vulnerable. I had a shaky time in my life around there - like I think a lot of people do in their 20s.

'That was a time when I started therapy, and started talking to people. I had felt very unsafe, and I wasn't talking to anyone. I had to feel very grateful for what I have, but I felt incredibly concerned about whether I could even f***ing act.'