COSTWAY’s portable steam sauna is a compact tent that sets up in minutes and plugs into any standard wall outlet. The 3-liter steamer produces consistent, atomized steam that fills the enclosure quickly, and the ETL certification means it won’t burn down your bathroom. With nine temperature settings and a 90-minute timer, you can dial in exactly how much heat you want without guessing.

At 27 inches square and 40 inches tall, this sauna fits a seated adult comfortably. The zippered arm openings let you scroll through your phone or hold a book, and the front pocket keeps the remote and your device within reach. The steam pot runs through a full tank in about 45 minutes on the highest setting, so the timer gives you plenty of room for a longer, lower-temp session if you prefer.

The main trade-off is portability over permanence. The frame is lightweight and collapsible, but it won’t feel as sturdy as a wooden sauna. The steam also collects on the interior fabric, so you’ll want to air it out after each use. For under $200, this is a practical way to get heat therapy at home without renovating your bathroom.