Temazepam Withdrawal: Why Sleep Gets Worse First, How Long It Lasts, and How to Taper
In brief. Restoril (temazepam) is a benzodiazepine prescribed for sleep. With a half-life of roughly 8 to 22 hours, withdrawal symptoms often begin within a day or two of stopping or cutting the dose.[1] The most common is rebound insomnia: sleep that is worse than before treatment, sometimes for weeks.[2] Stopping suddenly after regular use can also cause serious reactions, including seizures.[3] A slow, individualized taper with your prescriber is the safer path, typically starting with reductions of 5 to 10 percent every two to four weeks.[4]
What temazepam is, and why it is prescribed for sleep
Temazepam belongs to the same family as Xanax (alprazolam), Ativan (lorazepam) and Valium (diazepam). Like all of them, it strengthens GABA, the brain's main calming signal. Our guide to Xanax withdrawal explains how the shortest-acting of them compares.
What makes it a sleeping pill is its timing. Professor Heather Ashton of Newcastle University described it as combining a fairly quick onset with a medium duration of action, enough to carry someone through the night without too much hangover the next day.[2]
By her equivalence table, about 20 mg of temazepam is roughly equivalent to 10 mg of diazepam, and its half-life is roughly 8 to 22 hours.[1] For comparison, Halcion (triazolam), another benzodiazepine sleeping pill, has a half-life of about 2 hours.[1]
The difficulty is that the brain adapts to sleeping pills quickly.
Professor Ashton noted that tolerance to the sleep-inducing effect can develop after only a few days of regular use, and that sleep patterns tend to drift back toward where they started within a few weeks.[2] The FDA notes that physical dependence can develop after several days to weeks of steady use, even as prescribed.[3]
That is why guidance has long recommended benzodiazepine sleeping pills for short courses or occasional use only.[2] In practice, many people stay on them for months or years.
Many of the people I have worked with started temazepam during one hard season: a bereavement, a divorce, a long hospital stay. The pill helped. Then the season ended, and the prescription did not.
None of that is a personal failing. It is how the nervous system responds to the medication.
Rebound insomnia: why sleep gets worse first
The first thing most people notice when they cut or stop temazepam is the night.
Sleep can become shorter, lighter and more broken than it was before the medication was ever started. This is called rebound insomnia.
Professor Ashton described it plainly. After withdrawal, sleep is often worse than before treatment. It is most marked after long-term regular use, yet it can follow as little as one week of low-dose use. It tends to be more pronounced with moderately quickly eliminated drugs, and she named temazepam and lorazepam specifically. It may last for weeks.[2]
The reason is adaptation. While temazepam was doing part of the work of calming the brain at night, the brain turned down its own systems for doing that work. When the pill is removed, those systems take time to turn back up.
Rebound insomnia can be frightening. People lie awake and conclude that they truly cannot sleep without the pill, and go back to it. That conclusion is understandable, and it is usually not true. It is the withdrawal speaking.
Two things often help to know in advance:
- Rebound insomnia is expected, and it does not mean something has gone wrong.
- A slower taper usually softens it considerably, because the brain has time to adjust between steps.
We explain the wider pattern in our benzo withdrawal timeline, which compares temazepam with the other common benzodiazepines.
Temazepam withdrawal symptoms and timeline
Not everyone has every symptom, and none is inevitable. A gradual taper often keeps them mild. These are the ones most often described:[5][6]
| Night | Day | Body |
|---|---|---|
| Difficulty falling asleep | Anxiety, sometimes stronger than before | Muscle tension and aches |
| Waking often, or very early | Irritability and restlessness | Tremor, sweating, palpitations |
| Vivid dreams or nightmares | Poor concentration and memory | Sensitivity to light and sound |
| Feeling unrested on waking | Low mood, feelings of unreality | Stomach upset, appetite change |
The most serious reactions, seizures, confusion and psychotic symptoms, are rare. NHS guidance links them mainly to rapid withdrawal from high doses.[6]
There is no single timeline. Dose, length of use and the speed of the taper all shape it. As a general guide:
- The first day or two. Because temazepam is relatively short-acting, rebound insomnia and anxiety can begin within one or two nights of a missed or reduced dose.[1][2]
- The first weeks. Acute symptoms are usually most intense early and then ease, especially with small steps. Rebound insomnia may last for weeks.[2]
- Longer term. A minority of people have symptoms that last months. NHS guidance estimates this may affect up to 15 percent of people, and notes that lingering insomnia gradually recedes over 6 to 12 months.[6]
Temazepam sits close to Ativan in how it behaves. Both are moderately short-acting, and both can be felt quickly when the dose drops. Our guide to Ativan withdrawal covers that pattern in more depth.
Tapering a sleeping pill
The first rule is the same for every benzodiazepine. Do not stop temazepam abruptly after regular use. In 2020 the FDA required a Boxed Warning on the whole class, stating that stopping suddenly or reducing the dose too quickly can cause serious withdrawal reactions, including seizures, which can be life-threatening.[3]
In 2025, the American Society of Addiction Medicine and nine other medical organizations published a joint guideline on benzodiazepine tapering:[4][7]
- Start slowly, usually with reductions of 5 to 10 percent of the daily dose every two to four weeks.
- Generally do not exceed 25 percent every two weeks.
- Adjust the pace to how you respond. Pausing is allowed.
- Make the plan together, with your preferences in the room.
Tapering a nightly sleeping pill has its own practical questions. A few that come up often:
- Small steps. Professor Ashton noted that temazepam tablets can be halved, and that liquid forms can help when very small reductions are needed.[2]
- Switching to diazepam. Her manual includes a schedule for withdrawing from temazepam 30 mg nightly by substituting diazepam, which leaves the body more slowly and can smooth the steps.[5] Whether that suits you is a decision for your prescriber.
- Holding a step. If sleep collapses after a reduction, the joint guideline allows a pause. Holding at that dose for longer is worth discussing with your prescriber before pushing on.[4]
Done slowly, many people find tapering far more manageable than they feared. Professor Ashton observed that people who develop severe symptoms have usually come off too rapidly.[5]
Sleep without temazepam
Sleep does come back. Usually slowly, and in stages.
First the nights become a little less broken. Then falling asleep gets easier. Deep, unbroken sleep is often the last thing to return, as the brain re-learns what the pill was doing for it.
The most studied approach to long-term insomnia is not a pill. In 2016 a clinical guideline from the ACP recommended cognitive behavioral therapy for insomnia, known as CBT-I, as the first-line treatment for adults with chronic insomnia.[8] It combines practical changes to sleep habits, such as sleep restriction and stimulus control, with work on the anxious thoughts that gather around bedtime.[8]
Alongside that, these habits tend to help during and after a taper:
- Getting up at the same time every day, whatever the night was like.
- Daylight in the morning and gentle movement during the day.
- No alcohol as a substitute. It adds its own risks alongside benzodiazepines.[3]
- Leaving the bed if sleep will not come, and returning when drowsy.
- Being patient with a bad night. One night is not a trend.
If you are weighing whether to start the process at all, it can help to remember why it is worth doing. Professor Ashton observed that the sleep-inducing effect of benzodiazepines often fades within weeks of regular use.[2] For many long-term users, the pill is no longer doing much for sleep. It is mostly holding off withdrawal.
When to get medical help
Call your prescriber soon if:
- You have stopped temazepam suddenly after regular use.
- You are sleeping only a few hours a night for weeks.
- Anxiety, low mood or physical symptoms are getting steadily worse.
- You are taking other sleep aids, alcohol or other sedatives alongside it.
Call 911 now for a seizure, severe confusion, hallucinations or chest pain. Long stretches without sleep can weigh heavily on mood. If you are having thoughts of suicide or self-harm, call or text 988, the Suicide and Crisis Lifeline.
Some people taper successfully at home. Others try, lose too many nights, and go back up. That is common.
At Benzo Detox Protocol, the benzo program is built for people who could not get off at home, or who tried a detox and went back up. Most guests stay about twelve weeks; harder cases can take longer. Care is medically supervised, with around nine hours a day of one-to-one support, 24-hour nursing and private suites where sleep is protected. The taper is paced individually by the medical team, and screening before arrival can include bloodwork, an EKG and blood pressure. Depending on the person, the taper may be supported by the Brain Repair IV Drip, a proprietary formulation incorporating amino acids, peptides, and a nature-derived alkaloid. It is one component of a comprehensive, individualized protocol, intended to support the body and brain during recovery, not presented as a guaranteed cure. Nutrition and superfoods, red light therapy, a hyperbaric chamber, infrared sauna and detox baths may also be part of the plan. There is no group therapy. In fifteen years, no guest has had a seizure here. See how the 12-week program at our benzo detox center works.
Questions about temazepam withdrawal
How long does temazepam withdrawal last?
Acute symptoms usually ease over several weeks, and rebound insomnia may last for weeks. A minority of people have symptoms that last months. Dose, length of use and taper speed all matter.
When does temazepam withdrawal start?
Often within a day or two of stopping or cutting the dose, because temazepam has a half-life of roughly 8 to 22 hours. The first sign is usually a harder night.
What is rebound insomnia?
Sleep that becomes worse than it was before treatment, after a sleeping pill is reduced or stopped. Professor Ashton noted it is especially marked with temazepam and lorazepam, and it usually eases with time and a slower taper.
Is Restoril withdrawal dangerous?
It can be. Stopping suddenly after regular use can cause serious reactions, including seizures. A gradual taper set with your prescriber greatly reduces that risk.
How fast should I taper off temazepam?
The 2025 joint guideline suggests starting with reductions of 5 to 10 percent every two to four weeks, adjusted to how you respond. Some prescribers switch to diazepam first to make the steps smoother.
Will I ever sleep normally again?
For most people, sleep returns gradually, in stages. CBT-I, steady daily routines and patience with bad nights can help it along.
Sources
- Ashton CH. Benzodiazepine Equivalence Table
- Ashton CH. Guidelines for the rational use of benzodiazepines
- FDA Drug Safety Communication: Boxed Warning for the benzodiazepine class (2020)
- Joint Clinical Practice Guideline on Benzodiazepine Tapering, Journal of General Internal Medicine (2025)
- Ashton CH. Benzodiazepines: How They Work and How to Withdraw (The Ashton Manual)
- NHS Scotland. Benzodiazepines and Z-drugs: discontinuation and withdrawal symptoms
- American Society of Addiction Medicine. New tapering guideline announcement (2025)
- American College of Physicians. ACP recommends cognitive behavioral therapy as initial treatment for chronic insomnia (2016)