Blake Fielder-Civil is said to be showing "small signs of improvement" after falling into a coma following an alleged drugs binge.
The late Amy Winehouse's ex-husband was found choking in bed by partner Sarah Aspin on Friday when he reportedly took a lethal dose of drugs, which saw him suffer organ failure.
However, Sarah - who found Blake choking at their home - now believes he is making small steps towards a recovery, as she keeps a vigil at the side of his hospital bed in Dewsbury, West Yorkshire.
Blake has previously battled heroin addiction and spent time in prison in 2007.
Amy's father Mitch Winehouse also called for people to people to pray for troubled Blake, despite his confession he introduced Mitch's daughter to crack cocaine and heroin in an explosive 2008 interview.
Mitch posted on Twitter: "Terrible news about Blake this morning. Remember, Amy loved him. Let’s pray for his recovery."
> AMY'S LIFE IN PICS
British singer Amy Winehouse uses her mobile phone as she arrives at Belgrade airport June 18, 2011. AFP PHOTO / ANDREJ ISAKOVIC (Photo credit should read ANDREJ ISAKOVIC/AFP/Getty Images)
LONDON, ENGLAND - AUGUST 25: Amy Winehouse waits on the balcony before The Libertines perform live at The Forum on August 25, 2010 in London, England. (Photo by Ian Gavan/Getty Images)
LONDON, UNITED KINGDOM - MARCH 16: Amy Winehouse is sighted shopping at her local supermarket on March 16, 2010 in London, England. (Photo by Neil Mockford/Getty Images)
LONDON, ENGLAND - OCTOBER 26: (UK TABLOID NEWSPAPERS OUT) Amy Winehouse attends the 2009 Q Awards held at the Grosvenor House Hotel on October 26, 2009 in London, England. (Photo by Dave Hogan/Getty Images)
A combination of file photos shows British singer Amy Winehouse (L) and her former husband Blake Fielder-Civil (R) in London. Troubled British singer Amy Winehouse was divorced from her estranged husband, Blake Fielder-Civil, in London on Thursday July 16, 2009, after two years of marriage, her spokesman said. The 25-year-old won five Grammy awards off the back of her debut album 'Back to Black' and the hit single 'Rehab', but has since been engaged in a well-publicised struggle with drugs. AFP PHOTO/LEON NEAL/CARL DE SOUZA/FILES (Photo credit should read LEON NEAL/CARL DE SOUZA/AFP/Getty Images)
CHELMSFORD, UNITED KINGDOM - AUGUST 17: Amy Winehouse performs live on the V stage during Day Two of V Festival 2008 at Hylands Park on August 17, 2008 in Chelmsford, England. (Photo by Simone Joyner/Getty Images)
LONDON - FEBRUARY 10: British singer Amy Winehouse performs at The Riverside Studios for the 50th Grammy Awards ceremony via video link on February 10, 2008 in London, England. (Photo by Peter Macdiarmid/Getty Images for NARAS)
LOS ANGELES, CA - FEBRUARY 10: (Via Broadcast from London) Singer Amy Winhouse (L) hugs her mother Janis Winehouse after hearing that she won Record of the Year award for 'Back to Black' onstage during the 50th annual Grammy awards held at the Staples Center on February 10, 2008 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
MUNICH, GERMANY - NOVEMBER 01: (UK TABLOID NEWSPAPERS OUT) Amy Winehouse performs during the show at the MTV Europe Music Awards 2007 at the Olympiahalle on November 1, 2007 in Munich, Germany. (Photo by Dave Hogan/Getty Images for MTV)
UNIVERSAL CITY, CA - JUNE 03: Musician Amy Winehouse (L) and husband musician Blake Fielder-Civil arrive to the 2007 MTV Movie Awards held at the Gibson Amphitheatre on June 3, 2007 in Universal City, California. (Photo by Frederick M. Brown/Getty Images)
LONDON - JUNE 18: (UK TABLOID NEWSPAPERS OUT) Musician Amy Winehouse and her husband Blake Fielder-Civil arrive at the Mojo Honours List Awards Ceremony at The Brewery on June 18, 2007 in London, England. (Photo by Dave Hogan/Getty Images)
LONDON - FEBRUARY 14: (UK TABLOID NEWSPAPERS OUT) Singer Amy Winehouse arrives at The BRIT Awards 2007 in association with MasterCard at Earls Court 1 on February 14, 2007 in London, England. (Photo by Dave Hogan/Getty Images)
LONDON - FEBRUARY 12: Amy Winehouse and Kelly Osbourne arrive at the Elle Style Awards at the Round House Camden on February 12, 2007 in London, England (Photo by Chris Jackson/Getty Images)
LONDON - OCTOBER 30: (UK TABLOID NEWSPAPERS OUT) Singer Amy Winehouse and TV presenter Russell Brand pose in the awards room at the Q Awards 2006 at Grosvenor House Hotel on October 30, 2006 in London, England. (Photo by Dave Hogan/Getty Images)
LONDON - SEPTEMBER 7: (UK TABLOID NEWSPAPERS OUT) Amy Winehouse performs live at the annual 'Nationwide Mercury Music Prize' at the Grosvenor House on September 7, 2004 in London. The twelve albums short listed this year were Basement Jaxx (Kish Kash), Belle & Sebastian (Dear Catastrophe Waitress), Franz Ferdinand (Franz Ferdinand), Jamelia (Thank You), Keane (Hopes and Fears), Snow Patrol (Final Straw), Joss Stone (The Soul Sessions, The Streets (A Grand Don't Come For Free), Ty (Upwards), Amy Winehouse (Frank), Robert Wyatt (Cuckooland) and The Zutons (Who Killed The Zutons). (Photo by Dave Hogan/Getty Images)
LONDON - JANUARY 15: Singer Amy Winehouse performs live on stage at HMV Oxford Street on January 15, 2004 in London. (Photo by Bruno Vincent/Getty Images)
LONDON - JANUARY 12: (UK NEWSPAPERS OUT) Singer Amy Winehouse arrives at the announcement of the shortlist for The Brit Awards 2004 at the Park Lane Hotel on January 12, 2004 in London. The Brits Awards take place on February 17 2004. (Photo by Dave Hogan/Getty Images)