Medicare's Coverage of Unisom and Over-the-Counter Sleep Aids

Original Medicare (Part A and Part B) does not cover Unisom or other over-the-counter sleep aids. These products fall outside what Medicare considers medically necessary prescription medications. However, your coverage options depend on which type of Medicare plan you have and whether your doctor prescribes a medication instead of recommending an over-the-counter product.

If you have a Medicare Advantage plan (Part C), coverage varies by plan — some plans may cover certain sleep aids if prescribed by your doctor, while others do not. If you have Medicare Part D (prescription drug coverage), it typically does not cover over-the-counter sleep aids, but it may cover prescription sleep medications that your doctor prescribes for insomnia.

Key Takeaways

  • Original Medicare does not cover Unisom or other over-the-counter sleep aids under any circumstances.
  • Medicare Part D plans may cover prescription sleep medications prescribed by your doctor, but coverage and costs vary by plan.
  • Medicare Advantage plans have their own coverage rules, and you should check your plan documents or call your plan to learn what sleep aids are covered.
  • Your doctor can discuss prescription alternatives to over-the-counter sleep aids, which may be covered under your plan.
  • You can purchase Unisom and similar products out of pocket at pharmacies, and prices typically range from $5 to $15 per package.

The Difference Between Over-the-Counter and Prescription Sleep Aids

Unisom is an over-the-counter antihistamine containing diphenhydramine or doxylamine, depending on the product formulation. Because it is sold without a prescription, Medicare does not cover it — the program only covers medications that require a doctor's prescription or are on the Medicare-approved list of covered drugs.

If your doctor believes you need medication for insomnia, they can prescribe alternatives such as zolpidem (Ambien), eszopiclone (Lunesta), or ramelteon (Rozerem). These are prescription medications, and Medicare Part D plans may cover them, though your out-of-pocket cost depends on your specific plan's formulary — the list of drugs it covers — and your deductible.

Some Medicare Advantage plans also cover prescription sleep aids, but the drugs covered and the cost-sharing amounts differ from plan to plan. You will need to check your plan documents or contact your plan directly to learn whether a specific medication is covered.

How to Find Out What Your Plan Covers

If you have Original Medicare with Part D, log into your account on Medicare.gov or call 1-800-MEDICARE to view your plan's formulary. The formulary lists every drug your plan covers, the tier it falls into (which determines your cost), and any restrictions such as prior authorization or quantity limits. Search for the specific sleep medication your doctor recommends.

If you have a Medicare Advantage plan, contact your plan's customer service number — it is on your insurance card — and ask whether sleep aids are covered and which ones are on your formulary. Some plans require prior authorization, meaning your doctor must request permission from the plan before the medication is covered.

You can also ask your pharmacist to check your coverage. When you fill a prescription, the pharmacy's system shows what your plan covers and what you will pay out of pocket. This is often faster than calling the plan yourself.

What Sleep Aids Cost Without Medicare Coverage

If you choose to buy Unisom or another over-the-counter sleep aid without insurance, the cost is typically $5 to $15 per box, depending on the brand, the number of tablets, and where you purchase it. Generic versions are usually cheaper than brand-name Unisom. Prices vary between pharmacies, so comparing costs at different stores or online retailers can save you money.

If your doctor prescribes a medication that your Medicare plan does cover, your out-of-pocket cost depends on your plan's cost-sharing structure. You may pay a copay (a flat fee per prescription), coinsurance (a percentage of the drug's cost), or both. Some plans have a deductible you must meet before coverage begins.

When to Talk to Your Doctor About Sleep Problems

If you are considering Unisom or another sleep aid, it is worth discussing with your doctor first. Insomnia in older adults can signal underlying health conditions such as sleep apnea, restless leg syndrome, or medication side effects. Your doctor can identify the cause and recommend the most appropriate treatment, which may or may not be medication.

Over-the-counter sleep aids containing antihistamines can cause side effects in seniors, including dizziness, confusion, and increased fall risk. Your doctor can help you weigh the benefits and risks and suggest safer alternatives, such as behavioral changes, sleep hygiene improvements, or prescription medications with a lower risk profile for older adults.

Tell your doctor about all other medications and supplements you take, because sleep aids can interact with blood pressure medications, antidepressants, and other drugs. This is especially important if you are taking multiple medications.

Other Ways to Manage Insomnia Without Medication

Many seniors find that non-medication approaches work as well as or better than sleep aids. These include keeping a consistent sleep schedule, avoiding caffeine and alcohol in the evening, limiting daytime naps, exercising regularly (but not close to bedtime), and creating a cool, dark, quiet bedroom. Some people benefit from relaxation techniques such as deep breathing or progressive muscle relaxation.

Cognitive behavioral therapy for insomnia (CBT-I) is a structured program that teaches you to change thoughts and behaviors that interfere with sleep. Medicare Part B covers CBT-I when a psychologist or other may have access to mental health professional provides it, though you will need a referral from your doctor. This approach has strong evidence for effectiveness in older adults and may reduce or eliminate the need for sleep medication.

Frequently Asked Questions

Can I use my Health Savings Account (HSA) to pay for Unisom?

Yes, if you have an HSA, you can use it to pay for over-the-counter sleep aids like Unisom without a prescription. However, most people on Medicare do not have an HSA because HSAs are designed for people under 65 with high-deductible health plans. If you are still working and have both an HSA and Medicare, check with your HSA administrator about the rules.

Will my Medicare Advantage plan cover Unisom if my doctor prescribes it?

No. Unisom is an over-the-counter product, and Medicare Advantage plans do not cover over-the-counter medications even with a prescription. However, your doctor can prescribe a different sleep medication that may be covered by your plan's formulary.

What should I do if my Medicare plan does not cover the sleep medication my doctor prescribed?

Contact your plan to ask whether the medication requires prior authorization or whether a generic version is covered instead. You can also ask your doctor whether an alternative medication on your plan's formulary would work for you. Some plans have a process to request coverage of non-formulary drugs if your doctor believes it is medically necessary.

Is there a generic version of Unisom that might be cheaper?

Yes. Unisom contains either diphenhydramine or doxylamine, and both are available as generic over-the-counter products under different brand names. Generic versions are usually significantly cheaper than the Unisom brand. Ask your pharmacist which generic antihistamine sleep aids they carry and compare prices.