We all feel better after a good night's sleep.
But what is the relationship between learning and sleep in babies? That is the focus of Waikato University's School of Psychology researcher, Dr Sabina Seehagen's study.
She's been granted $300,000 from the Marsden Fund to compare emotional reactions of babies to see if sleep plays a part in their memory and learning.
"The idea comes from the fact that babies learn just so much every day in comparison to us, I think it's really astounding how much babies pick up."
In doing her research Dr Seehagen creates emotional experiences.