Melbourne woman allegedly sets fire to sleeping husband

A Melbourne man is in a critical condition after his wife allegedly set fire to him while he was asleep.

It is believed the 36-year-old woman poured some sort of accelerant onto him and set him alight on Wednesday morning just before 6am, 7 News reports.

Their 11-year-old son was in the house and woke up to his father's screams. Police found him on the footpath outside when they arrived.

The man suffered burns to most of his upper body and is fighting for his life in Alfred Hospital, 7 News reports.

The woman and son were also taken to hospital but were discharged shortly after.

The woman is in custody but no charges have yet been laid.