All information is correct at time of printing and is subject to change without notice. The Devon Formulary and Referral Website is not in any way liable for the accuracy of any information printed and stored by users. For the most up-to-date information, please refer to the website.
Page last updated:
2 April 2024
Suspect insomnia if (despite adequate time and opportunity to sleep) the person has:
The choice of management strategy for insomnia is dependent on the duration and nature of presenting symptoms.
Initial management for all patients should include advice on sleep hygiene.
Advise the person not to drive if they feel sleepy, either due to the effects of insomnia, or treatment. The DVLA must be informed if excessive sleepiness is having, or is likely to have, an adverse effect on driving. For more detailed guidance, see the DVLA “At a glance” guide.
Some patients may need to take a hypnotic whilst they are in hospital. Patients discharged from local hospitals should not receive a supply of hypnotics unless it can be clearly established that ongoing treatment is required.
Prescribers in secondary care should review all prescriptions for hypnotics on discharge for appropriateness and ensure there is clear communication for GPs regarding whether hypnotics should be continued. Where a specialist recommends that treatment with a hypnotic is continued past the usual maximum treatment duration (i.e. off-label) a clear rationale must be communicated to the GP, including a proposed treatment plan of when to review, reduce and/or discontinue treatment.
Advice on sleep hygiene should aim to increase awareness of behavioural, environmental, and temporal factors that may be detrimental or beneficial to sleep.
Offer advice on:
Devon Partnership Trust has produced a handy fact sheet
Address any triggers or factors associated with onset of insomnia and ensure comorbidities (such as anxiety and depression) are optimally managed.
Review current medicines for drugs that are associated with insomnia or disturbed sleep. Examples include antidepressants (SSRIs, MAOIs, venlafaxine), some antiepileptics (gabapentin, lamotrigine, levetiracetam, pregabalin etc.), beta blockers, diuretics, laxatives, steroids and stimulants. It may be possible to take these agents earlier in the day to minimise problems at night.
Initial management should include advice on sleep hygiene (see above)
If sleep hygiene measures fail and daytime impairment is severe causing significant distress, consider treatment with a short-term hypnotic as detailed below:
If a hypnotic is prescribed:
NICE guidance NG215: ‘Medicines associated with dependence or withdrawal symptoms: safe prescribing and withdrawal management for adults’ includes guidance on: supporting people; making decisions about prescribing; starting, reviewing and withdrawing a dependence-forming medicine.
Consider a short course (3-7 days) of either:
Where available, offer cognitive behavioural therapy for insomnia (CBTi)
Pharmacological treatment may be considered as an adjunct to CBTi, or when CBTi is not available, or is unsuitable. If pharmacological therapy is utilised review the patient in 2-4 weeks and consider the need for a different approach to management or onward referral.
Recommended options include:
Antihistamines (e.g. promethazine), are not routinely recommended to treat insomnia but may offer alternative short-term relief to z-drugs in certain clinical scenarios e.g. history of substance misuse. In such cases treatment duration should be limited to less than 7 days.
Antidepressants (e.g low dose amitriptyline) and antipsychotics are not recommended solely to treat insomnia (although insomnia may improve in response to adequate treatment of a comorbid condition i.e. a depressive, hypomanic, or psychotic episode).
Address any triggers or factors associated with maintenance of insomnia (for example illness or other stressors). Ensure comorbidities (such as anxiety and depression) are optimally managed.
Review current medicines for drugs that are associated with insomnia or disturbed sleep. Examples include antidepressants (SSRIs, MAOIs, venlafaxine), some antiepileptics (gabapentin, lamotrigine, levetiracetam, pregabalin etc.), beta blockers, diuretics, laxatives, steroids and stimulants. It may be possible to take these agents earlier in the day to minimise problems at night.
Offer advice on sleep hygiene (see above)
Where available, offer cognitive behavioural therapy for insomnia (CBTi) as the first line treatment for long-term insomnia.
Pharmacological therapy may be considered for management of long-term insomnia only in the circumstances described in the entries below.
If a hypnotic is prescribed:
NICE guidance NG215: ‘Medicines associated with dependence or withdrawal symptoms: safe prescribing and withdrawal management for adults’ includes guidance on: supporting people; making decisions about prescribing; starting, reviewing and withdrawing a dependence-forming medicine.
Review the patient following treatment and consider the need for a different approach to management or onward referral for consideration of an alternative sleep disorder (for example obstructive sleep apnoea).
Antihistamines (e.g. promethazine), are not routinely recommended to treat insomnia but may offer alternative short-term relief to z-drugs in certain clinical scenarios e.g. history of substance misuse. In such cases treatment duration should be limited to less than 7 days.
Antidepressants (e.g low dose amitriptyline) and antipsychotics are not recommended solely to treat insomnia (although insomnia may improve in response to adequate treatment of a comorbid condition i.e. a depressive, hypomanic, or psychotic episode).