Top 7 Eco-Friendly Sauna Accessories

The sauna is already one of the more low-tech things you can do for yourself. No screens, no equipment, no complicated routines. The accessories that go with it should follow the same logic: simple, durable, made from materials that don't off-gas or shed microplastics when they sit in sustained heat.

Here are seven worth having, plus a few more to round out the kit.

1. A Wool Sauna Hat

Wool is the right material for a sauna hat, and the reason is simple. Its natural fiber crimp makes air pockets that insulate without sealing in heat. It absorbs moisture without feeling wet. It's naturally odor-resistant, which matters when you sweat into something regularly. And unlike synthetics, it's a renewable fiber that breaks down at the end of its life instead of lingering as plastic.

The Schvitzin Original is 5mm of 100% American merino, handcrafted in New Jersey, with an adjustable leather buckle strap. It's $170 and built to last 5 to 10 years with proper care. Fewer replacements means less waste. That's the sustainability case in one sentence.

Care: hand wash cold, lay flat to dry, no tumble dry, no wringing.

2. Wooden Sauna Buckets and Ladles

Wood is the traditional choice for a reason. It doesn't conduct heat the way metal does, so it stays safe to handle. Pine and birch are the standards, ideally FSC-certified for responsible sourcing. Bamboo is a common alternative with a faster regrowth cycle. At end of life, wood decomposes without leaving synthetic residue, and a well-kept bucket lasts years on nothing more than a rinse and dry after each use.

3. Natural Fiber Scrubbing Brushes

Loofah, sisal, and flax brushes are plant-based and fully biodegradable, usually paired with a bamboo handle. The difference from a synthetic loofah matters: natural fibers decompose, plastic fibers shed microplastics with every use. Dry it completely after each session. Natural fibers hold moisture longer, so airflow keeps them lasting.

4. Organic Cotton Towels

In a sauna, the towel sits between you and a bench that can hit 160 to 200°F. Organic cotton, certified to GOTS standards, is processed without toxic chemicals and biodegrades naturally. Long-staple organic cotton keeps its absorbency and softness through years of washing. Skip fabric softeners, which coat the fibers and cut absorbency.

5. Bamboo Sauna Backrests

Standard benches are flat and hard. A backrest adds lumbar support and puts a barrier between your skin and the hot wood. Bamboo handles the heat and humidity well, matures in five to seven years against decades for hardwood, and breaks down cleanly at end of life. Look for non-toxic, low-VOC finishes, since some coatings off-gas in high heat.

6. Natural Sauna Scents

Plant-based essential oils are the sensible choice. Synthetic fragrances off-gas unpredictably at high temperatures and don't belong in an enclosed space you're breathing deeply in for 15 to 20 minutes. Finnish and Nordic traditions favor birch, pine, and eucalyptus. Always dilute in water before adding to the bucket, three to four drops per liter is plenty, and never pour oil directly on hot stones.

7. Cedar Sauna Thermometers

Cedar's natural oils resist rot and moisture, which suits it to a humid sauna. An analog cedar thermometer needs no batteries, makes no electronic waste, and reads accurately for years. Place it near the heater to catch peak temperature, which is where it matters.

A Few More Worth Having

• A hydration bottle. You lose a lot of water in a session. A stainless steel or glass bottle beats single-use plastic and handles heat without leaching anything.
• A sand timer. A simple wood-and-glass hourglass keeps you honest on session length with no batteries and no screen. Fifteen minutes is a common size.
• A hygrometer. If you like to control the humidity, a simple analog hygrometer alongside your thermometer tells you what the room is actually doing.

The Common Thread

All of these share the same logic: natural materials outlast synthetic ones in sauna conditions, they're safer in a hot enclosed space, and they don't leave microplastics or synthetic residue behind. Wool is the clearest example. It's a renewable fiber that does its job for years and then biodegrades, which is exactly what you want from something you use this often.

The upfront cost of buying natural is usually a little higher. Over the life of the gear, it's usually lower, because you replace it far less often.

For more on the hat specifically, see [why wool is the best material for a sauna hat].

Frequently Asked Questions

What accessories do I actually need for the sauna? The short list: a wool hat, something to pour water (a wooden bucket and ladle), a towel, and a way to tell temperature and time. Everything else is preference.

Why do natural materials matter in a sauna? Heat and humidity break synthetics down faster and can cause some to off-gas in an enclosed space. Natural materials like wool, wood, and organic cotton hold up better and don't shed microplastics.

Is a wool sauna hat really more eco-friendly? Wool is renewable and biodegradable, and a well-made hat lasts 5 to 10 years, so you replace it far less often than a cheap synthetic one. Fewer replacements is the biggest part of the sustainability case.

What essential oils are safe for the sauna? Plant-based oils like birch, pine, and eucalyptus, always diluted in water and added to the bucket, never poured directly on the stones.