Sleep Medications: What the Guidelines Actually Recommend

"What is the safest sleeping pill?" is one of the most common questions about insomnia, and it does not have the answer most people are hoping for. No guideline singles out a safest drug. What the guidelines do is weigh each medicine's evidence and say whether they suggest using it, and for which problem.

Two guidelines cover most of the ground. The AASM's 2017 guideline is a review of insomnia drugs by sleep specialists.1 The VA/DoD guideline, updated in 2025, is newer and covers medicines approved since then.2 One thing to hold onto throughout: every medication recommendation in both is graded weak, meaning the evidence is limited and the right choice depends on the person.

What the guidelines suggest using

Every one of these is a weak recommendation.12

Some are suggested for trouble falling asleep and others for staying asleep — the problem you have narrows the list. And the guidelines do not always agree: the VA/DoD now suggests against benzodiazepines such as temazepam and triazolam, which the AASM suggested in 2017.

Even the suggested medicines carry warnings. Eszopiclone, zolpidem and zaleplon have an FDA boxed warning about rare but serious injuries, including deaths, from sleepwalking, sleep-driving and other activities performed while not fully awake.4 Benzodiazepines carry a boxed warning about abuse, misuse, addiction, physical dependence and withdrawal.5

What the guidelines suggest against

Three of those are worth a closer look.

Trazodone at low doses is widely prescribed for sleep — dispensing of low-dose trazodone rose steadily through the 2010s.7 Both guidelines still suggest against it for chronic insomnia.

Melatonin is the supplement most people reach for first, and both guidelines suggest against it for chronic insomnia. NCCIH puts the same point plainly: under the ACP and AASM guidelines there is not enough strong evidence on melatonin's effectiveness or safety for chronic insomnia to recommend its use.8 It may still help with short-term, circadian problems such as jet lag.

Diphenhydramine is the active ingredient in most over-the-counter sleep aids. Those products are approved only for occasional sleeplessness, and their labels say sleeplessness lasting more than two weeks needs medical advice.6 Being sold without a prescription does not make a drug a good choice for nightly use.

Age changes the answer

The American Geriatrics Society's Beers Criteria identify medications that are potentially inappropriate in adults 65 and over. Three groups relevant to sleep appear, all as strong recommendations on moderate-quality evidence:3

• First-generation antihistamines — avoid. Highly anticholinergic, cleared more slowly with age, and tolerance develops when used as a hypnotic.
• Benzodiazepines — avoid. Increased risk of cognitive impairment, delirium and falls in older adults, alongside misuse and dependence.
• Z-drugs (zolpidem, eszopiclone, zaleplon) — avoid. Adverse events similar to those of benzodiazepines in older adults, with minimal improvement in sleep latency and duration.

Low-dose doxepin at 6 mg or less is not on the avoid list; higher doses are.

Read that against the table above and the tension is obvious: several medicines the AASM suggests for insomnia are ones the Beers Criteria say to avoid after 65.

The bottom line

People searching for the safest sleeping pill are usually not researching pharmacology. They want to sleep without harming themselves.

The guidelines do name medicines worth considering when medication is needed — but all of them put something else first. The AASM strongly recommends CBT-I for chronic insomnia,10 the VA/DoD recommends it and suggests it over medication,2 and the AASM's 2026 combination guideline puts CBT-I alone first, CBT-I plus medication second, and medication alone last.11

None of this is a reason to stop a medicine you have been prescribed. Some sleep medicines cause withdrawal symptoms or rebound insomnia if stopped suddenly, and some are treating something other than insomnia. But if you have not tried CBT-I, it is the thing the guidelines agree on — and you can add it without stopping anything.