Sleeplessness is regarded as the most common mental health symptom experienced and these websites are a good source of information. One of these days I will get round to summarising the common threads.
Mathew Walker’s 2018 book on the science of sleep is frequently applauded although I found it a rather bleak read and short on what can help.
1 One for the teenagers from the NHS
2 The Royal College of Psychiatrists discuss sleep problems in childhood and adolescence: for parents and carers
3 Another helpful leaflet from the NHS on how to get to sleep
4 The Mental Health Foundation also offer some help on how to sleep better
5 Mind provide some good information in this leaflet.
Have a good nights sleep