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Sheridan Smith announced that with "great sadness" she has split from her fiancé Jamie Horn after three years together.

The Garvin and Stacey actress previously revealed that her and Jamie were 'in a daze' following the birth of their boy last year as they struggled with a lack of sleep despite their teamwork.

The Bafta award winner also told how a shortage of outside help due to the restrictions of the pandemic made things slightly harder as new parents, as she joked that the pair were 'walking around like zombies.'

Speaking to the I Newspaper about parenthood, she said: “It's surreal. You're kind of walking around in a bit of a daze. If it hadn't been a pandemic, we would have had more people to rely on so we could both go and get some rest; but thank goodness we had each other.”

Sheridan Smith and Jamie Horn struggled as first time parents during the pandemic
(Image: Dave Benett/Getty Images)

She went on to say that her insurance broker beau Jamie, 31, 'took a lot of time' to care for their little one too, meaning she got to sleep in between breastfeeding.

But she noted that despite their teamwork, they were still extremely tired, stating: “We were walking around like zombies, and we didn't really know what day it was. When there's this bundle of joy, though, the good times make up for the bad.”

She added that at the time, it was just the three of them together and they didn't have others to 'rely on', so they simply 'got on with it'.

Despite the couples teamwork the pair were still extremely tired
(Image: Instagram)

The couple’s split comes a week after celebrating her 40th birthday, with Sheridan sharing a picture with her son as she thanked fans for their well-wishes.

She wrote alongside a photo of them standing by a stunning balloon display with the number 40 adorned in gold: “Thank you all so so much for your beautiful birthday messages! Means the world, #40yearsyoung.”

Dog-lover Sheridan, who recently presented Pooch Perfect on BBC One, is now focusing on upcoming work projects.

The multi award-winning star is one of the UK’s best-loved actresses and rose to fame after starting in a a number of sitcoms.

The couples split comes a week after Sheridan celebrated her 40th birthday
(Image: Getty Images)

Sheridan Smith rose to fame after appearing in multiple sitcoms
(Image: WireImage)

She has appeared in a host of memorable shows as diverse as Mrs Biggs, Gavin and Stacey, The Royle Family, Benidorm and Jonathan Creek.

She also stars in the new Railway Children film due out next year.