Actress Amy Adams is such a sleep-deprived mum she fears she's beginning to go crazy.

The Doubt and Enchanted star reveals her 18-month-old daughter Aviana has always been restless and the sleepless nights are beginning to take their toll on the young mother.

Adams reveals, "I Googled sleep psychosis because I thought I was going crazy... I mean sleep-deprivation psychosis; I can't even remember what it's called now. I'm exhausted."

And she's also tired of talking to other mums, who brag about their sleeping children.

The actress adds, "When you're a mom you hear lots of comparison stories from other moms; I just try not to talk to other moms."