What you need to do if you are driving

You must tell the Driver and Vehicle Licensing Agency (DVLA) if you have a health problem that makes you sleepy when driving. Your Healthcare Professional will have told you if this is needed.
You can be fined up to £1,000 if you don’t tell the 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 Healthcare Professional if you’re not sure how your sleeping problem affects your driving.


Driver and Vehicle Licensing Agency (DVLA)

Questionnaires may be downloaded from:
Drivers Medical Enquiries
SA99 1TU

Tel: 0300 790 6806 (car drivers and motorcycles)

Tel: 0300 790 6807 (bus, coach and lorry drivers)

Monday to Friday 8.00am to 5.30pm, Saturday 8.00am to 1.00pm


When using a humidifier

Leave the water chamber to cool down for at least 15 mins after turning your sleep device off before you empty it. Never move your sleep device when there is water in the water chamber. Always empty the water out first. Put clean water in the water chamber when you go to bed.



All masks have small holes that allows air to come out. This is normal. Do not cover the holes.

If you have any problems with your sleep device, please contact our Helpline on 0800 1214524, 8.00am – 5.00pm Monday to Friday (open 24 hours, 7 days a week for urgent calls only).

Do not just stop using your sleep device.

Our helpline is for problems with your sleep device only; not for medical emergencies. If you have a medical emergency, you should always dial 999.