Cold plunges used to sit in backyards and home gyms. Now homeowners want an indoor cold plunge in the bathroom, built into a freestanding tub.
The wellness practice behind the indoor cold plunge is growing in popularity. The practice has been associated with potential benefits, including less muscle soreness, better sleep, and steadier stress levels. Scientists are still testing how far those effects reach.
Consumer demand is already visible in search data. Houzz’s 2024 Summer Trends Report recorded a 74% year-over-year rise in searches for “cold plunge.” Searches for “indoor sauna” climbed 69% over the same period.
Berg Design Studio installed Hydro Systems‘ Marquis freestanding tub in a home in Heber, Utah. The tub shows that a classic freestanding form can also handle cold-plunge capability. Steve C. Wilson photographed the space.
The shift extends beyond single fixtures. The 2026 report found that searches for “wellness room” rose 164%, a sign that homeowners are planning their spaces with more purpose.
If a wellness room has to share a small footprint, the same squeeze shows up in compact homes, where every square metre has to work harder. Luxurious Living in a Tiny Dream Home shows how a small layout can still feel generous.
Designers are hearing the same demand from clients. Stephanie Larsen, an Arizona designer, now adds cold plunges, infrared saunas, and integrated aromatherapy systems to her projects. She says clients are asking for these features more often, and she told Luxe Interiors + Design: “Today’s clients are craving homes that heal and inspire. They want spaces infused with wellness technology.”
Planning an Indoor Cold Plunge Into Your Home
Planning for these requests goes beyond choosing a tub. Cold plunges often pair with saunas for contrast therapy, which alternates hot and cold exposure. Fitting both into a home means checking floor space, plumbing runs, and how the two elements work together.
Hydro Systems builds cold-plunge capability into freestanding tubs, so an indoor cold plunge needs no separate unit. Hydro Systems provided the image.
Ashley Steinhardt, VP of Sales at Hydro Systems, sees the same trend in client projects. “We’re seeing wellness become a more intentional part of residential design, with dedicated spaces that bring together multiple hydrotherapy experiences in a single tub, from cold plunging and whirlpool to oxygenated microbubble therapy.”
The California bath manufacturer fits an indoor cold plunge into customizable tubs through its Hydro Chill technology. That removes the need for a separate fixture. The latest version adds smart-home controls, letting users set water temperatures and schedule plunges remotely.
Hydro Systems is also exploring how several hydrotherapy experiences can share one footprint. Its new Hydro Chill Ultra delivers hot and cold water from a self-contained unit that heats its own water. No traditional hot-water connection is required, so the system suits pool houses and dedicated wellness rooms.
A Slate tub, finished in a custom color with a polished surface, carries built-in Hydro Chill plunge capability at an Atlanta Homes showhouse. A wood-paneled sauna sits alongside it, forming a complete wellness corner. Hydro Systems supplied the photo.
Large home spas can hold separate saunas, plunge tubs, and other extras. An ordinary bathroom offers far less room. Multifunctional fixtures help cut the space each indoor cold plunge requires, which makes them easier to fit into standard layouts.
Steinhardt says the approach is not limited to large houses. “Wellness doesn’t have to be confined to a dedicated room. Hydrotherapy can also be incorporated into smaller bathroom footprints, bringing wellness into everyday routines.”
Smart controls are also reshaping the bathroom beyond the plunge itself. Roca’s Smart Toilet Reimagining Bathroom Hygiene is worth a look for how connected fixtures are being built into everyday bathroom routines.
A Hydro Chill plunge system sits in a home gym beside weight equipment, putting recovery in the same room as training. Hydro Systems supplied the photo.
Cold plunges may still be a relatively niche residential amenity, but their growing visibility is prompting designers to reconsider what a cold plunge bathroom can accommodate. The central question is no longer whether a bathroom can hold a plunge. It is how much room the rest of the bathroom gives up to make space for one.
Via design-milk.com
Frequently asked questions
What health benefits are associated with cold plunging?
The practice has been associated with potential benefits, including less muscle soreness, better sleep, and steadier stress levels. The article notes that scientists are still testing how far those effects reach.
Can a freestanding tub also include cold plunge capability?
Yes, Hydro Systems builds its Hydro Chill technology into customizable freestanding tubs. This removes the need for a separate cold plunge fixture.
Does the Hydro Chill Ultra need a traditional hot-water connection?
No, the Hydro Chill Ultra delivers hot and cold water from a self-contained unit that heats its own water. Because of this, it suits pool houses and dedicated wellness rooms.
What is contrast therapy in the context of cold plunges?
Contrast therapy alternates hot and cold exposure. Cold plunges are often paired with saunas to create this effect.
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