Sleep scientists, feng shui experts and psychologists put their heads together to analyse the best way to get up in the morning.
Left is best, they decreed in a study undertaken by the hotel chain Premier Inn.
Feng shui expert Jan Cisek said getting out of the bed on the left is associated with all that people hold dear - family and health, money and power.
Psychology and motivation expert Pete Cohen said the left side helps us all to think rationally about the day ahead.
"The right side of the brain is responsible for emotions like fear and stress which only dilute your potential for having a positive experience," he said.