Labour said that they didn't want to pull the trigger too early, before Tory MPs or the DUP were willing to take down the government.
It seems that her only hope of seeing her deal through parliament is that enough of her MPs will be swayed by any assurances she obtains from the EU as she heads to the European Council in Brussels.
The win staved off what would have been an ignominious end to her time as leader - and means she can not be challenged by her own party again for 12 months.
DUP chief whip Sir Jeffrey Donaldson has insisted he is "not aware of any such meetings".
Theresa May has played down the prospects of an "immediate breakthrough" on the so-called Northern Ireland backstop in talks with European Union leaders. If she comes back from the European Union summit this week, in a last-ditch bid to save her deal without the necessary legal changes, the DUP could help Labour and other opposition parties seal her and her government's fate.
The vote was held after at least 48 Conservative MPs sent letters to Tory MP Graham Brady, chair of the 1922 Committee, expressing no confidence in Theresa May's leadership of the party.
Under such a scenario we would expect Sterling to consolidate the recent gain made in the wake of Theresa May's confidence vote win.
Nonetheless, the 62-year-old has proved to be a stubborn political survivor, hanging on to power amid fierce internal and external opposition, and despite a disastrous general election in June 2017.
Her position remains very shaky however as 117 MPs - more than on third of her party - voted against her last night.
Her victory on Wednesday means that Conservative Party members can not try to oust May as their standard-bearer in the next year.
Think your friends would be interested?
Norwich North MP Chloe Smith added: "I'm pleased for the prime minister but most of all keen that we now get on with things and make a success of the big issues for my constituents and for the whole country". The real question is if there's a majority for a people's vote.
"The prime minister must realise that, under all constitutional norms, she ought to go and see the queen urgently and resign", said Jacob Rees-Mogg, leader of a hard Brexit faction, after the confidence vote result.
A former Bank of England employee and daughter of a Church of England pastor, May has been widely praised for a punishing work ethic and dedication to duty, but her premiership has been characterised by obduracy in the face of crises. She also said she wouldn't seek to call a General Election, which will come as a relief to many Tories.
"The crisis and chaos now facing the United Kingdom is entirely a result of the vicious civil war that has engulfed the self-centred Conservative Party - at a crucial time in the UK's history, it has a lame-duck prime minister saddled with a lame-duck Brexit deal".
She told them she will not lead the party into the next scheduled election in 2022, but she wants to stay on to deliver her Brexit deal.
The Northern Irish party that props up her government - and strongly opposes her withdrawal deal - said the fundamental arithmetic in parliament was unchanged despite the confidence vote victory, and the backstop must go.
May said she had been heard on the backstop: "No one that I met yesterday is in any doubt about the strength of concern in this house on this issue of the duration of the backstop".
Corbyn has said the vote makes "no difference" and described her government as "in chaos".
"My focus now is on ensuring I can get those assurances that we need to get this deal over the line because I genuinely believe it's in the best interest of both sides".
But Labour fears May will only be able to win cosmetic changes to the backstop - and will use the ongoing talks as an excuse to avoid testing the will of parliament.
Conservative MPs were voting from 6.00pm to 8.00pm in a parliamentary committee room, with results of the confidence vote due at 9.00pm (5.00am Singapore time Thursday).