Insomnia sufferers are being invited to take part in a new scientific study into the potential risks of taking sleeping pills.
Researchers at the University of Lincoln are exploring whether people who take them to nod off at night could be prone to accidents the following morning.
Some studies have made a link between taking the tablets and the heightened risk of suffering a fall or being involved in a road accident the next day.
It is believed this may be due to the effect of the drugs on people's balance and thought process.
Dr Simon Durrant, from the university's school of psychology, said: "Doctors commonly prescribe sleeping pills to sufferers but, like many drugs, there are side effects to weigh up alongside the benefits.
"This study will help us better understand the risks."
The university researchers want to hear from people across Lincolnshire who have suffered from sleeping problems several nights a week for three months or more.
To take part, volunteers should be aged between 18 and 60.
People who work night shifts cannot take part.
For more information or to sign up to the study, contact Fiona Togher by e-mailing firstname.lastname@example.org or calling 01522 837731.