Trouble falling or staying asleep can affect your mood, focus, and health. When lifestyle changes aren’t enough, doctors sometimes prescribe a short-term sleep medication. Two commonly discussed options are Ambien (zolpidem) and Restoril (temazepam).
Both are prescription sedative-hypnotics, both are controlled substances, and both are meant for short-term use. They belong to different drug classes, though, and they differ in how fast they work, how long they last, and how they affect the body. This guide covers the Ambien vs. Restoril comparison, including zolpidem vs. temazepam for sleep, side effects, dosage, safety, and dependence.
Note: This article is for general education only and is not medical advice. Only a licensed healthcare provider can decide which medication, if any, is appropriate for you.
What Is Ambien (Zolpidem)?
Ambien is the brand name for zolpidem, a prescription sleep medication approved for the short-term treatment of insomnia. It is a “nonbenzodiazepine” hypnotic, often called a Z-drug. Ambien is available in several forms:
- Immediate-release tablets (Ambien) to help you fall asleep
- Extended-release tablets (Ambien CR) to help you fall asleep and stay asleep
- Sublingual tablets (such as Edluar and Intermezzo), which dissolve under the tongue
Zolpidem is a Schedule IV controlled substance in the United States, meaning it has a recognized potential for misuse and dependence.
What Is Restoril (Temazepam)?
Restoril is a brand name for temazepam, a prescription medication for short-term insomnia. Temazepam is a benzodiazepine, the same drug class as medications like diazepam and lorazepam. It comes as a capsule, and generic temazepam is widely prescribed.
Like zolpidem, temazepam is a Schedule IV controlled substance. Benzodiazepines carry boxed warnings from the FDA about abuse, misuse, addiction, physical dependence, and withdrawal reactions.
How Do Ambien and Restoril Work?
Both medications act on GABA, the brain’s main calming (inhibitory) neurotransmitter, but in slightly different ways.
- Ambien (zolpidem) binds fairly selectively to a specific part of the GABA-A receptor (the alpha-1 subunit). This mainly produces sedation, with weaker anti-anxiety and muscle-relaxing effects.
- Restoril (temazepam) binds to GABA-A receptors more broadly. Besides sedation, benzodiazepines can reduce anxiety, relax muscles, and have anticonvulsant effects.
This difference helps explain why the two drugs feel different and why their risk profiles aren’t identical.
Ambien vs. Restoril: Key Differences at a Glance
| Feature | Ambien (Zolpidem) | Restoril (Temazepam) |
| Drug class | Nonbenzodiazepine (Z-drug) | Benzodiazepine |
| Controlled substance | Schedule IV | Schedule IV |
| Forms | Immediate-release, extended-release, sublingual | Capsule |
| Typical onset | About 15–30 minutes (immediate-release) | About 30–60 minutes |
| Half-life | Roughly 2–3 hours | Roughly 8–10 hours on average (wide range) |
| Main use | Falling asleep (CR also helps staying asleep) | Falling and staying asleep |
| Other effects | Mostly sedation | Sedation, plus anti-anxiety and muscle relaxation |
| Key warnings | Complex sleep behaviors, next-day impairment | Boxed warnings: opioid co-use, dependence, withdrawal |
Exact figures vary by person and formulation, so always follow the labeling and your prescriber’s guidance.
Ambien vs. Restoril for Insomnia
Insomnia is not one-size-fits-all. Some people struggle to fall asleep (sleep-onset insomnia), while others wake repeatedly or too early (sleep-maintenance insomnia).
In the Ambien vs. Restoril for insomnia comparison, Ambien is typically associated with helping people fall asleep faster, and the extended-release version is designed to also support staying asleep. Restoril is generally considered useful for both falling asleep and staying asleep because it lasts longer in the body.
Neither is a first-line, long-term solution. Guidelines generally recommend cognitive behavioral therapy for insomnia (CBT-I) and good sleep habits first, with medications used short-term when needed.
How Quickly Do Ambien and Restoril Work?
- Ambien works quickly. The immediate-release tablet often takes effect within about 15 to 30 minutes, which is why it should be taken right at bedtime, only when you can get a full night of sleep.
- Restoril usually takes a bit longer, often around 30 to 60 minutes, though some people notice effects sooner.
Taking either medication with or right after a heavy meal can slow absorption and delay the effect.
How Long Do Ambien and Restoril Last?
Duration is one of the biggest differences between these medications.
- Ambien (immediate-release): It has a short half-life of roughly 2 to 3 hours and generally supports about 6 to 8 hours of sleep. Ambien CR lasts somewhat longer by design.
- Restoril: It has a longer and more variable half-life, averaging around 8 to 10 hours, so effects can linger into the next day for some people.
A longer duration may help with staying asleep, but it can also mean more morning grogginess.
Ambien vs. Restoril: Dosage and Treatment Duration
Dosing is individualized, and the following reflects general labeling information, not a recommendation.
Ambien dosage:
- Immediate-release comes in 5 mg and 10 mg tablets. The FDA recommends a lower starting dose for women (5 mg) because they clear zolpidem more slowly.
- Extended-release comes in 6.25 mg and 12.5 mg tablets, with 6.25 mg recommended for women and older adults.
Restoril dosage:
- Capsules come in 7.5 mg, 15 mg, 22.5 mg, and 30 mg strengths. The usual adult dose is 15 mg to 30 mg, with a lower dose (such as 7.5 mg) for older or debilitated patients.
Treatment duration:
Both are intended for short-term use, often limited to about 7 to 10 days, with reassessment if insomnia continues. Ambien vs. Restoril dosage questions should always go through your prescriber, since taking more than prescribed raises the risk of serious harm.
Common Side Effects of Ambien and Restoril
Restoril vs. Ambien side effects overlap quite a bit, since both depress the central nervous system. Common with both:
- Drowsiness or “hangover” feeling the next day
- Dizziness and lightheadedness
- Headache
- Fatigue
- Nausea or stomach upset
- Impaired coordination and slowed thinking
More commonly noted with Ambien: dry mouth, diarrhea, and memory lapses around the time of dosing. More commonly noted with Restoril: lingering sedation, muscle weakness, and confusion, especially in older adults.
Serious Risks and Safety Concern
When comparing Ambien vs. Restoril safety, these are the major concerns.
- Complex sleep behaviors (both drugs): Sleepwalking, sleep-driving, cooking, or other activities while not fully awake, often with no memory afterward. The FDA requires a boxed warning for zolpidem for this reason, and people who experience such behaviors should stop the medication and contact their provider immediately.
- Next-day impairment: Driving or operating machinery the next day can be unsafe, especially if you didn’t get a full night’s sleep or took a higher dose.
- Breathing problems: Sedatives can slow breathing, particularly when combined with alcohol or opioids.
- Mood and behavior changes: Worsening depression, unusual thoughts, or suicidal thoughts have been reported with sleep medications. Seek help right away if this occurs.
- Allergic reactions: Swelling of the face, tongue, or throat is an emergency.
- Benzodiazepine-specific warnings (Restoril): The FDA boxed warning highlights risks of abuse, misuse, addiction, physical dependence, and dangerous combinations with opioids.
Ambien vs. Restoril: Dependence and Withdrawal
Both drugs can cause tolerance and dependence, especially with longer use or higher doses, so Ambien vs. Restoril dependence is an important consideration.
- Restoril carries the benzodiazepine class warnings. Stopping suddenly after regular use can cause withdrawal symptoms such as anxiety, rebound insomnia, tremors, sweating, and, in serious cases, seizures. Tapering under medical supervision is typically recommended.
- Ambien can also cause dependence and withdrawal symptoms, including rebound insomnia, anxiety, and cravings, though serious withdrawal is more often linked to higher doses or prolonged use.
Rebound insomnia, where sleep is temporarily worse after stopping, can occur with either medication. Never stop a sleep medication abruptly after prolonged use without talking to your healthcare provider.
Ambien vs. Restoril: Drug Interactions
Both medications can interact with other substances. The most important ones include:
- Alcohol: Increases sedation and the risk of dangerous breathing suppression and accidents. It should be avoided with either drug.
- Opioids: Combining them with sedatives can lead to profound sedation, respiratory depression, coma, or death. This is a boxed warning for benzodiazepines.
- Other CNS depressants: Including sedating antihistamines, muscle relaxants, certain antidepressants and antipsychotics, and anti-anxiety medications.
- Enzyme-affecting drugs (mainly Ambien): Zolpidem is processed in part by the CYP3A4 enzyme, so certain antifungals, antibiotics, and other drugs can raise or lower its levels. Temazepam is cleared by a different pathway and has fewer enzyme-related interactions.
Tell your prescriber and pharmacist about every medication and supplement you take.
Who Should Avoid Ambien or Restoril?
These medications are not appropriate for everyone. Talk with your provider before using either if you:
- Have a history of substance use disorder or addiction
- Have sleep apnea, COPD, or other breathing conditions
- Have liver problems
- Have depression or a history of suicidal thoughts
- Have previously experienced sleepwalking or complex sleep behaviors on a sleep aid
- Are pregnant, planning pregnancy, or breastfeeding (benzodiazepines in particular are generally avoided in pregnancy)
- Are allergic to the medication or its ingredients
- Regularly drink alcohol or take opioids
Ambien vs. Restoril in Older Adults
Older adults are more sensitive to the effects of sleep medications. Both zolpidem and temazepam increase the risk of confusion, dizziness, falls, fractures, and next-day impairment. The American Geriatrics Society’s Beers Criteria advises avoiding benzodiazepines and Z-drugs like zolpidem in older adults when possible. When a doctor does prescribe one, lower doses are used (for example, 5 mg of immediate-release Ambien or 7.5 mg of Restoril) for the shortest possible time. Non-drug approaches like CBT-I are usually preferred.
Ambien vs. Restoril: Which Is More Suitable for Sleep Problems?
Many people search “which is better, Ambien or Restoril?” There is no universal winner. The better choice depends on your sleep pattern, health history, other medications, age, and risk factors.
- Ambien may be considered when the main problem is falling asleep, since it works quickly and wears off sooner.
- Restoril may be considered when the problem is staying asleep, since it lasts longer, though that same feature can increase next-day drowsiness.
- Neither may be ideal for people with a history of substance misuse, breathing problems, or complex sleep behaviors, or for older adults.
Your prescriber will weigh these factors, and may recommend other options, including CBT-I, treating underlying causes like sleep apnea, anxiety, or pain, or different medication classes.
Frequently Asked Questions About Ambien vs. Restoril
Is Ambien the same as Restoril?
No. Ambien (zolpidem) is a nonbenzodiazepine Z-drug, while Restoril (temazepam) is a benzodiazepine. They both treat insomnia but differ in how they work, how long they last, and their risk profiles.
What is the difference between zolpidem and temazepam?
Zolpidem acts more selectively on sleep-related GABA receptors and has a shorter half-life. Temazepam acts more broadly, lasts longer, and also has anti-anxiety and muscle-relaxing properties.
Which is stronger, Ambien or Restoril?
Strength depends on the dose and the person, so “stronger” isn’t a reliable comparison. They have different effects and durations rather than a simple ranking.
Which one is more addictive?
Both are Schedule IV controlled substances with dependence potential. Benzodiazepines like Restoril carry strong class-wide warnings about addiction and withdrawal, but Ambien can also lead to dependence.
Can I take Ambien and Restoril together?
Combining them is generally not recommended because it increases sedation and the risk of breathing problems and accidents. Only do so if specifically directed by your prescriber.
Can I drink alcohol with either medication?
No. Alcohol significantly increases the risks with both drugs.
How long can I take Ambien or Restoril?
They are intended for short-term use. If insomnia lasts beyond a couple of weeks, talk to your provider about the underlying cause.
Is it safe to stop suddenly?
Not after regular or prolonged use. Ask your provider about a safe tapering plan.
Conclusion
Ambien and Restoril are both effective short-term options for insomnia, but they are not interchangeable. Ambien (zolpidem) acts fast, targets sleep more selectively, and wears off sooner, though it carries a boxed warning for complex sleep behaviors. Restoril (temazepam) lasts longer and may help with staying asleep, but it brings benzodiazepine risks including dependence, withdrawal, and heavy next-day sedation.
Both interact dangerously with alcohol and opioids, both call for extra caution in older adults, and neither is a long-term fix. The best choice depends on your individual health profile, so talk with a healthcare provider about your sleep problems, and combine any medication with proven approaches like CBT-I and healthy sleep habits.
Medical Disclaimer: This content is for informational purposes only and does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting, changing, or stopping any medication.
