Wake her up from a dead sleep. Worked twice. Reason. Everyone was relaxed and not expecting anything.
Worked for us and after my wife gave the advice to her friends it worked for them.

Why a Roubaix and oh yeah get as many miles as you can cause those first few weeks are exercises in sleep deprivation. Even if you guys breast feed there are still diapers. Which, oddly, becomes the man's jurisdiction cause mom has to feed the baby. Every two hours. Enjoy the no sleep thing. Actually you end up sleeping when the baby does. So you sleep in the middle of the day. Best memories are curling up on the couch and catching some zzzs with the little ones laid squarely on my chest.

Good times.