Prescription sleep drugs work — but every one is a short-term lever with a real trade-off, and none fixes the behaviour or the clock underneath. For chronic insomnia the first-line treatment isn't a drug at all; it's CBT-I. When a drug is warranted, some are far cleaner than others.
Dual orexin receptor antagonists (daridorexant/Quviviq, lemborexant/Dayvigo, suvorexant/Belsomra) block the brain's 'stay awake' signal rather than forcing sedation, so they preserve natural sleep architecture better and carry the lowest dependence of the hypnotics. They're the emerging near-first-line drug when one is genuinely needed — the main barriers are cost and insurance coverage. Evidence ●●●●○
Z-drugs (zolpidem/Ambien, eszopiclone) are effective and fast but bring tolerance, dependence, and an FDA boxed warning for complex sleep behaviours (sleep-driving and -eating, even on a first dose). Benzodiazepines suppress deep and REM sleep and are habit-forming. Both are for short-term or situational use, not nightly. Low-dose doxepin (3–6 mg) and, off-label, trazodone are gentler maintenance options. Evidence ●●●○○
The over-the-counter 'PM' sleep aids (diphenhydramine/Benadryl, doxylamine) stop working within days as tolerance builds, and their anticholinergic load is linked, at chronic high use, to a higher dementia risk. Fine for the occasional single night; not for regular use, and best avoided in older adults. Evidence ●●●○○
Drugs are a short-term lever — CBT-I is the fix
Never start, stop, or combine sleep medications on your own, and don't treat any of them as a long-term solution. For persistent insomnia, ask about CBT-I first — it works better long-term than any pill, and it has none of the downside.
The Sleep Guide