In the NYC Metro, 5 of the curated saunas fit this cut. See the full the NYC Metro region guide for every venue, or keep scrolling for just the infrared saunas.
Every infrared sauna in NYC Metro

beem Light Sauna — Park Slope
$$New York, United States
beem's Park Slope studio is on Fifth Avenue in Brooklyn. Guests book a private full-spectrum infrared sauna and choose the colour of its light. Red light therapy is the other treatment on offer.

Perspire Sauna Studio — Williamsburg
$$$Brooklyn, United States
Perspire's Williamsburg studio is on North 8th Street in Brooklyn. Guests book a private suite with an infrared sauna, red light panels and a 45°F rainfall shower for alternating heat and cold. Halotherapy is also offered, and single sessions are open to anyone.

QC Spa New York
$$$New York, United States
Italian-style luxury day spa in three restored 1934 army barracks on Governors Island, reached by ferry. Thermal baths, several saunas, steam rooms, Vichy showers, infrared beds, an ice room, a salt room and outdoor pools facing the Manhattan skyline. Adults-only, with session-bounded entry.

Spa Castle
$$$Queens, United States
Four-story, four-season Korean jjimjilbang in College Point with themed sauna chambers (Himalayan salt, gold, jade, halotherapy, color therapy, dry, plus steam) and an ice room. Indoor and outdoor heated hydrotherapy pools, jacuzzis, infrared lounge, restaurant and pool bar, and a Kids Castle that makes it explicitly family-oriented. Walk-in admission.

World Spa
$$$Brooklyn, United States
A 50,000 sq ft Brooklyn megabath that bills itself as the largest banya in the US. The setup spans Eastern European banyas, Finnish saunas, Moroccan and Turkish hammams, a Himalayan salt room, a snow room and an onsen circuit. You move between rituals, then collapse on a chaise by the fireplace lounge.