The Transformers star admits she gave in and asked for a night nurse when sleep deprivation began to kick in.
"Having an infant is difficult. It's a lot of work and I didn't hire any help because I overestimated my own abilities. I had no idea how difficult babies could be, so Brian and I were exhausted. I said to Brian, 'We have to get a night nurse or we're going to get a divorce because someone's got to sleep in this house or we're going to kill each other," Fox told TV host Jay Leno.
The couple now has a nanny who helps with the baby two evenings a week.