Excessive sleepiness and driving

You must tell DVLA if you have:

  • suspected or confirmed obstructive sleep apnoea syndrome (OSAS)
  • narcolepsy
  • cataplexy
  • any sleep condition or apnoea that causes excessive sleepiness for more than 3 months
  • medication that you are taking which causes excessive sleepiness for more than 3 months

You do not need to tell DVLA if you have obstructive sleep apnoea which is not, or has not, been associated with sleepiness.

You can be fined up to £1,000 if you don’t tell DVLA about a medical condition that affects your driving. You may be prosecuted if you’re involved in an accident as a result.

Ask your doctor if you’re not sure if your excessive sleepiness will affect your driving.

Car or motorcycle licence

Report your condition online

You can also fill in form SL1 and send it to DVLA. The address is on the form.

Bus, coach or lorry licence

Fill in form SL1V and send it to DVLA. The address is on the form.

Driving while tired

Read ‘Tiredness can kill’ on the dangers of driving while tired and how sleep disorders like obstructive sleep apnoea, excessive sleepiness and other conditions can make you tired.