New parents bear the brunt of sleep loss, because the baby requires constant attention, what with the frequent feedings and diaper changes.
Newborn infants sleep in fits and starts, making it virtually impossible for a parent to get more than a couple of hours’ rest at a time.
When parents sleep only for a few hours on a regular basis due to the demands of the infant they tend to build up a "sleep debt" that hampers health.
Parents tend to be exhausted, which leads to crankiness, depression, mood swings, arguments, blazing rows, and relation-ship break-ups.