Why bedding qualifies for HSA/FSA
The layer touching your skin, trapping heat or changing your sleep surface can be part of managing a health condition. Your Letter of Medical Necessity (LMN) connects the bedding you need to that purpose: cotton sheets for eczema, for example, or an allergen-blocking cover for dust-mite allergy.
IRS Publication 502 defines medical expenses to include the “diagnosis, cure, mitigation, treatment, or prevention of disease”. A licensed provider connects bedding to your condition in your Letter of Medical Necessity, and that is what makes it HSA/FSA eligible. Bedding bought for general comfort without a medical purpose is a personal expense.
This guide covers sheets, toppers, pads, covers, cooling bedding and weighted blankets. If you're replacing the whole bed, our mattress HSA/FSA guide covers mattresses and adjustable beds.
Do weighted blankets work?
Weighted blankets can help some adults manage insomnia and anxiety through the calming sensation of pressure. A randomized trial in the Journal of Clinical Sleep Medicine studied 120 adults with insomnia and psychiatric conditions. After four weeks, those using weighted chain blankets reported greater improvement in insomnia severity than those using light blankets.
A 2024 systematic review in Complementary Therapies in Medicine found a small improvement in anxiety across five trials and concluded that weighted blankets may be a safe and effective add-on treatment for anxiety and insomnia symptoms.
Which conditions can support a bedding LMN?
The right bedding depends on what interrupts your sleep or aggravates your symptoms. A blanket's weight, a cover's allergen barrier and a sheet's fabric serve different purposes; your letter should name the feature that helps manage your condition.
- Insomnia. A weighted blanket provides steady pressure that some people find calming at bedtime. Cleveland Clinic describes adult insomnia trials showing improved reported sleep, giving your provider a specific option to discuss for persistent difficulty sleeping.
- Anxiety. Weighted blankets can be part of a plan to manage anxious feelings when settling down. The systematic review of weighted blankets in people with mental health conditions found reduced anxiety, supporting a letter that connects the blanket to that symptom-management role.
- Chronic low back pain. A topper or overlay changes the support of the mattress you already have. A 2021 review in the Journal of Orthopaedics and Traumatology found that a medium-firm surface promotes comfort, sleep quality and spinal alignment, and described improved sleep and pain with an air overlay in people with chronic pain.
- Menopause-related hot flashes and night sweats. Cooling pads help manage the heat that interrupts sleep. An eight-week, single-arm pilot study in Menopause followed 15 perimenopausal and postmenopausal women using a cooling mattress pad and recorded a 52% reduction in hot-flash and night-sweat frequency.
- Dust-mite allergy, including allergic rhinitis. An allergen-blocking encasement creates a barrier around the mattress. Mayo Clinic recommends allergen-proof bedcovers alongside weekly bedding washing and humidity control to reduce dust-mite exposure.
- Allergic asthma triggered by dust mites. Reducing exposure in bed can be part of managing a known asthma trigger. MedlinePlus recommends mite-proof mattress covers within a broader bedroom dust-control routine.
- Eczema, including atopic dermatitis. Fabric against your skin can affect irritation and flare-ups. The American Academy of Dermatology recommends 100% cotton sheets as one way to help reduce flare-ups, giving a provider a concrete reason for recommending a particular sheet material.
How to get your Letter of Medical Necessity for bedding
You can get your Letter of Medical Necessity for bedding in two ways.
- Through Crates, typically in under 24 hours. Fill out the online health assessment, which takes 2 to 3 minutes. A licensed provider reviews it, and if you qualify, your letter is issued for the bedding. You'll have a valid LMN for 12 months, and it renews each year.
- Through your own doctor, a few days to a few weeks. Book a visit with your usual provider, say you want to buy bedding with HSA/FSA funds, and ask them to document how the bedding helps prevent, manage, or reverse your condition. Ask for that explanation in a letter your provider has signed and dated. The visit may come with a copay.
How to buy bedding with HSA/FSA funds
Once you have the letter, buy your bedding wherever you like, then get your money back.
- Get your LMN first. Go through Crates or your own doctor, as above, before you buy the bedding.
- Buy the bedding anywhere. Pay with your personal card, online or in store, and keep the itemized receipt showing the item, purchase date and amount paid.
- Get your funds back. Crates can file your claim through one-click reimbursement, or you can upload the letter and receipt yourself. If you're using HSA funds, save the letter and receipt with your tax records.
Publication 969 explains that HSA expenses must arise after the account is established. For an FSA, use the applicable coverage period and claim-filing deadline. Our HSA vs. FSA guide explains those account differences.
Which bedding should you choose?
Choose the item whose features match the medical purpose in your letter. A cooling sheet, a supportive topper and a dust-mite cover solve different problems, even when they all fit the same bed.
| Bedding type | What it adds | What to compare |
|---|---|---|
| Weighted blanket | Steady pressure | Weight, dimensions and whether you can move it comfortably |
| Mattress topper or overlay | A change to the sleeping surface | Material, support, thickness and fit on the existing mattress |
| Sheets | Fabric directly against the skin | Fiber content, texture, breathability and washing instructions |
| Cooling pad or temperature-controlled cover | Cooling at the sleep surface | Passive fabric versus active temperature control, noise and care requirements |
| Dust-mite cover or encasement | An allergen barrier | Full mattress coverage, closure and allergen-blocking construction |
| Mattress pad | A thinner layer above the mattress | Whether its material, cushioning or cooling feature matches the recommendation |
For allergy management, look for an actual allergen barrier rather than relying on the word “hypoallergenic”. For eczema, check the fiber label. For night sweats, compare lightweight sheets or a cooling comforter with an actively cooled mattress pad. Match sheets, covers and toppers to your mattress size. If neck support is your priority, our pillow HSA/FSA guide covers that separate choice.
Bedding brands to compare
The documented medical purpose and letter decide eligibility. These brands offer different approaches to bedding and temperature control:
| Brand | Known for | Eligible with an LMN |
|---|---|---|
| BedJet | Air-based bed cooling and warming | Yes |
| Eight Sleep | Temperature-controlled mattress covers | Yes |
| Bearaby | Knitted weighted blankets | Yes |
| Rest | Cooling sheets and comforters | Yes |
Our BedJet HSA/FSA guide covers air-based cooling, while the Eight Sleep guide covers its mattress-cover system. Other brands use the same medical-purpose route; choose the bedding that matches your provider's recommendation.
How much can you save on bedding?
For an illustrative $250 qualifying bedding purchase, a combined rate near 30% represents $75 in avoided taxes and an effective after-tax cost of $175. The retailer still charges $250. Reimbursement draws on your own account funds; the savings come from their tax advantages.
Each column multiplies the purchase price by the illustrated tax rate:
| Illustrative bedding purchase | Savings at 22% combined | Savings at 30% combined | Savings at 37% combined |
|---|---|---|---|
| $100 | $22 | $30 | $37 |
| $250 | $55 | $75 | $92.50 |
| $500 | $110 | $150 | $185 |
These purchase prices are examples, not current offers. Combined rates reflect applicable federal, state and payroll taxes; the tax benefit depends on your taxes and contribution arrangement. Provider or LMN fees are separate.












