Should You Buy a Sauna or Cold Plunge First?

If your budget or space only fits one to start, the honest answer is that it depends on your main goal. Both tools are worth owning, and the biggest payoff comes from having both for contrast therapy. But when you can only buy one first, a few clear questions point you to the right starting piece.

The short answer

Buy the sauna first if your goals lean toward relaxation, heat tolerance, sleep, and long-term cardiovascular wellness, since the research behind regular sauna use is the strongest of the two. Buy the cold plunge first if your focus is athletic recovery, alertness, mood, and post-workout soreness, or if space and budget are tight, because a plunge is smaller and often less expensive to install. Most buyers who want a complete recovery routine end up with both and alternate between them, which is where the effect is greatest. So the real question is not which is better, but which one serves your top priority today. Start there, use it consistently for a few months, then add the second piece to build a full hot and cold routine. Whichever you choose first, buy the size and quality you will still be happy with once the second unit joins it.

Start with your main goal

The fastest way to decide is to name the one benefit you want most in the next few months. Recovery and alertness point to cold. Relaxation, heat, and longevity point to a sauna. Write down your top reason before you compare prices, because it keeps the decision honest instead of driven by whichever unit is on sale.

When to buy the sauna first

Choose the sauna first if you want a calming, low-effort ritual and the deepest evidence base. Regular sauna bathing is linked to meaningful cardiovascular benefits in long-running population research, including a widely cited 2015 study in JAMA Internal Medicine that associated frequent sauna use with lower cardiac risk. Saunas also help many people wind down and sleep better. The trade-offs are size and power: a cabin takes more floor space, and a traditional model may need a dedicated circuit. If a sauna is your starting point, our infrared saunas are the easiest entry, since many are plug-and-play. Compare options in the sauna buying guide.

When to buy the cold plunge first

Choose the cold plunge first if you train hard, want a sharp jolt of alertness, or are working on mood and stress resilience. Cold water immersion has real, well-documented effects on recovery and how you feel, though the benefits tend to be shorter-lived than the long-term sauna research, so it is best framed as recovery and ritual rather than disease prevention. A plunge also has a smaller footprint and, depending on the model, a simpler setup, which makes it a practical first purchase when space or budget is tight. Explore models in our cold plunge tubs for sale.

The real payoff is having both

Hot and cold together, known as contrast therapy, is where most enthusiasts land. Alternating a sauna and a cold plunge has been studied for recovery, and a 2017 systematic review of cold water immersion and contrast water therapy in the Journal of Strength and Conditioning Research found both are common in high-level team sport recovery. Beyond the physiology, many people simply enjoy the ritual: heat to relax, cold to sharpen, repeated in rounds. If a full setup is the long-term plan, our contrast therapy guide shows how to sequence the two, and our sauna and cold plunge buying guide helps you size both.

Practical factors: space, power, and budget

Factor	Sauna	Cold plunge
Footprint	Larger, room-sized cabin	Smaller, tub-sized
Power	120V plug-in or dedicated 240V circuit	Standard outlet for most chillers
Best-known benefit	Relaxation, sleep, cardiovascular wellness	Recovery, alertness, mood
Ongoing care	Light: air out, occasional bench oil	Water care and filtration

Budget matters too. Buying one quality unit now and adding the second later spreads the cost, and both a sauna and a cold plunge may qualify for HSA or FSA savings and financing, which our HSA and FSA page explains.

A simple way to decide

1. Name your single top goal for the next three months.
2. If it is recovery, alertness, or mood, start with the cold plunge. If it is relaxation, sleep, or long-term wellness, start with the sauna.
3. Check your space and power to confirm the first unit fits cleanly.
4. Buy quality at the size you will still want once you own both.
5. Use it consistently, then add the second piece to build a full contrast therapy routine.

Frequently asked questions

Should I get a sauna or cold plunge first? Start with whichever serves your top goal. Sauna first for relaxation, sleep, and cardiovascular wellness; cold plunge first for recovery, alertness, and mood, or when space and budget are tight.

Is it worth having both? Yes. Alternating hot and cold, called contrast therapy, is where most people get the most value, and it is well established in athletic recovery.

Which is cheaper to install? A cold plunge often has a smaller footprint and simpler power needs, while a sauna may need more space and, for some models, a dedicated circuit.

When you are ready to build the full routine, our sauna and cold plunge collection pairs both in one place. Everything ships with free US shipping, an authorized-retailer warranty, financing, and real human support, and many units qualify for HSA or FSA savings. Not sure which to start with? Reach our team through the contact page and we will help you match the first unit to your goal and space.