Amy Winehouse's mother says her daughter is "slowly killing herself". 

Janis Winehouse is terrified Amy's drug taking will kill her within in a month and she won't survive long enough to perform at the Grammys. Janis said: "I realise my daughter could be dead within a year.

We're watching her kill herself slowly. Part of me thinks she won't alive for the Grammys next month. She always lived on the edge, even as a baby."

The 'Rehab' singer checked into north London's Capio Nightingale Hospital last week after footage of her smoking what appeared to be crack cocaine was released.

However, Janis remains unconvinced treatment will help the 24-year-old clean up her life.

She added to Britain's Sunday Mirror newspaper: "I would love to see her drugs-free. I hope this time it will work - but who knows?"

Janis also blamed Amy's drug problems on her husband Blake Fielder-Civil and urged her daughter to get a divorce.

She said: "What I hope most of all is that Amy makes another album - about her divorce. She had never taken class A drugs before she met Blake. He is penniless user, she doesn't see he is using her but everyone else does."

Meanwhile, Blake - who is currently awaiting trial in London's Pentonville prison for grievous bodily harm (GBH) and conspiracy to pervert the course of justice charges - has revealed he has nightmares about Amy's death.

Blake told Britain's News of the World newspaper: "I fear I will come out of prison with no wife. I dread my cell door being opened and the chaplain saying, 'Amy's dead.'

I have that nightmare three or four times a week. "My parents have begged me to get a divorce. They think she is the Black Widow who will be the death of me. But I would rather have a short life with Amy than a long life without her."