Retirement can help you sleep easier, particularly if you retire early with generous pension payments.

Researchers at the Univeristy of Turku in Finland studied 14,714 people who had retired from the French national gas and electric company; 79% were men and only 4% retired due to health reasons.

Their average retirement age was 55.

The research, published in the journal Sleep, followed the workers for seven years before they retired and seven years afterwards to examine what effect retirement had on sleep patterns.