Trazodone
most data
The Dose Guy’s verdictAug 29, 20263 sources
If you want a pharmaceutical sleep aid and you have never taken one, start here. Trazodone is the most-prescribed off-label sleep drug for a reason: it works, it is not a controlled substance, and it does not build the tolerance and dependence that the Z-drugs and benzodiazepines do. The honest catch is morning grogginess. Some people wake clean, some drag through the first hour. Try a low dose and see which you are.
What it is
Trazodone is a serotonin antagonist and reuptake inhibitor, an antidepressant from the 1980s that almost nobody prescribes for depression anymore. At 25 to 100 mg, well below the 300+ mg antidepressant range, the sleep mechanism is mostly histamine and alpha-1 blockade: sedation without the GABA pathway that builds tolerance in zopiclone and the benzodiazepines. It knocks you out gently, it does not hook you, and the script is easy to get.
Among its siblings on the sleep shelf, trazodone is the practical default. Not the cleanest next-day feel, not the most modern mechanism, but the one that works for most people without creating a new problem. If you want the cleaner next-day option, lemborexant is the upgrade. If your sleep problem is really a mood-and-rhythm problem, agomelatine is a better fit.
What the research shows
Not one landmark trial but decades of smaller ones, recently aggregated into meta-analyses:
One nuance the numbers reveal: the same 44-trial meta-analysis found trazodone added about 28 minutes of objective sleep, p=0.02, but subjective total sleep time did not move, 0.73 minutes, p=0.96. You sleep longer without feeling like you slept longer. That gap is the trazodone experience.
Realistic protocols
Take it 30 to 60 minutes before you want to be asleep. Start at 25 or 50 mg and give it a few nights. Most people land between 50 and 100 mg, and the dose that works is the one to keep. Going past 150 mg adds serotonergic side effects without proportionally better sleep, and at that point you are in antidepressant territory, not sleep-aid territory.
Food slows it down. Taking it on an empty stomach hits faster but can be rougher on the gut, so most people take it after a light snack. Alcohol: a sedative plus a depressant hits harder than either alone. You will not die, but the hangover writes itself.
If you decide to stop, taper over a week or two out of good practice, but trazodone does not produce the withdrawal or rebound insomnia that the Z-drugs do. You can step off without a project.
One practical note: trazodone is a sedative, not a rhythm fixer. If the problem is circadian timing or sleep apnea, it will sedate you through those problems without solving them. Fix those first.
Side effects
The main complaint is the morning after, not the night of:
