Charlie Rowley, 45, who was poisoned in the British city of Amesbury, has regained senses, Salisbury District Hospital wrote on Twitter on Tuesday.
British Prime Minister Theresa May said she was appalled and shocked by Sturgess's death and the interior minister, Sajid Javid, said the "desperately sad news only strengthens our resolve to find out exactly what has happened".
Salisbury Hospital says Tuesday that Rowley has experienced a "small but significant improvement" and is now conscious.
'She had the biggest of hearts and she will be dreadfully missed by both her immediate and wider family.
The Sturgess family added: "Our thoughts and prayers also go out to Charlie and his family and we wish Charlie a speedy recovery".
The UK government blamed Russia for the poisoning of the Skripals back in March, which led to expulsion of Russian diplomats from several western embassies.
Ms Sturgess leaves behind two sons, aged 23 and 19 and a ten-year-old daughter.
The Metropolitan police assistant commissioner, Neil Basu, said on Monday that the substance that led to Sturgess and Rowley falling ill was in a vessel or container when the couple came across it.
Brett Kavanaugh Supported Broad Leeway For Presidents In Lawsuits, Investigations
If confirmed, he would replace retiring Supreme Court Justice Anthony Kennedy , for whom Kavanaugh once served as a clerk. At the White House late Monday, Trump called Kavanaugh a "brilliant jurist" who has "devoted his life to public service".
Charlie Rowley is still fighting for life in hospital. He told the Commons: "The simple reality is that Russian Federation has committed an attack on British soil which has seen the death of a British citizen".
'That is something that I think the world will unite with us in actually condemning'.
A statement from the Counter Terrorism Policing Network said: "The bus that Dawn and Charlie travelled on, on Friday night was identified and seized by Wiltshire Police on Wednesday 4 July - initially as a precautionary measure to check and ensure there was no risk to the public".
It's not known how Sturgess and her partner contracted the nerve agent, but tests have confirmed they touched a contaminated item with their hands.
The Ministry of Defence is working with the police on the investigation and the clear-up effort, with 175 armed forces personnel involved.
Central to the investigation is John Baker House, the supported-living accommodation where Ms Sturgess lived; Mr Rowley's home in Amesbury, and Salisbury's Queen Elizabeth Gardens, which remains cordoned off.
"There is a possibility they found it on 5 March and only opened it in the past 10 days".
Javid, who is chairing a meeting of the government's emergency committee on Monday, has said there were no plans at this stage for further sanctions against Russian Federation.