Elahni is a first of its kind Wellness Speakeasy®. As a private, immersive space designed for deep restoration, we blend the timeless practice of Temperature Contrast, a traditional Finnish sauna and ice baths, with an adaptogenic tonic bar and a curated library, creating an atmosphere that invites both stillness and connection.

Is this contrast therapy?

We call what we do Temperature Contrast, a guided experience alternating Finnish sauna at 180°F and ice bath immersion at 39°F. While the practice shares roots with contrast therapy, our approach is different: every session is hosted and guided, limited to four guests, and designed around nervous system restoration rather than physical recovery alone. If you're searching for contrast therapy in NYC, this is what it looks like when the experience is built from first principles.

What is Temperature Contrast?

Temperature Contrast is Elahni's guided practice of alternating between extreme heat (Finnish sauna at approximately 180°F) and cold immersion (ice bath at 39°F) across three intentional rounds. Each session includes breathing guidance, aromatherapy, and adaptogenic beverages. The practice trains your nervous system to move between states of activation and recovery with greater ease, building resilience that extends beyond the session into daily life.

Is Elahni a self-guided experience?

No, Elahni is not a free-flow space. Our sessions are thoughtfully facilitated to create a structured and intentional journey. This ensures every guest experiences the full restorative benefits of our practices. As such, it is important each guest arrives at least 5, ideally 10, minutes early.

What does a typical session at Elahni include?

Each Temperature Contrast session blends aromatherapy-infused heat exposure, ice bath immersions, and moments of stillness. You'll also have access to our adaptogenic tonic bar and curated library, all within an intimate setting designed for reflection and renewal.

What are the benefits?

Temperature Contrast at Elahni supports nervous system regulation, improved sleep quality, more stable energy levels, faster physical recovery, and a calmer stress response. The alternation between heat and cold trains your autonomic nervous system to shift between activation and rest more efficiently. Over time, your capacity to stay composed through challenging experiences deepens.

How many people are in a session?

A maximum of four. This is intentional. Our intimate scale creates the conditions for psychological safety, authentic connection, and the kind of nervous system downregulation that large group settings cannot provide.

When should I arrive?

To honor the experience for everyone, our doors close 10 minutes after each session begins. Please plan to arrive a few minutes early to settle in. If you arrive later than this window, entry cannot be guaranteed.

Do I need prior experience with saunas or ice baths?

Not at all! Our guided sessions are designed for all experience levels. Our hosts will support you throughout, offering guidance and modifications to ensure your comfort and safety.

What should I bring to my session?

We provide towels & have lockers & showers available. We recommend bringing a swimsuit and a water bottle. Minimalist, comfortable clothing is ideal for both the sauna and ice baths.

Yes we have men's and women's locker room with showers, hairdryers, etc.

How long is each session?

Sessions are 70 minutes, however please allow allow a little more time after for changing & having a drink at our tea & tonic bar.

Can I book a private session?

Yes! We offer private bookings for individuals or small groups looking for a more personalized experience. Please contact us directly for availability and pricing: team@elahni.com

Is Elahni suitable for people with health conditions?

If you have any health concerns, especially related to cardiovascular or respiratory conditions, we recommend consulting with your healthcare provider before participating. Please let our team know of any concerns so we can best support you.

Is there an age limit?

Yes, all guest must be at least 18 years of age.

Do you allow walk-ins?

No, all sessions must be booked in advance. please see our reservations page or email for more info.

What is your cancellation policy?

Cancellations made at least 24 hours in advance will receive a full refund. Cancellations within 24 hours are non-refundable due to our intimate session sizes.

How is Elahni different from a bathhouse or spa?

Elahni is not a spa or bathhouse. We're a wellness studio focused on nervous system health through guided Temperature Contrast. Sessions are limited to four guests. Every session is actively guided by a host. The experience is designed around interoceptive awareness, training your ability to sense and regulate your internal state. We call ourselves a wellness speakeasy because the space is intimate, intentionally hidden, and designed for depth over volume.

Where is Elahni located?

12 W 27th St, Floor 2, NoMad, Manhattan. The entrance is intentionally discreet. We share exact arrival details when you book. No walk-ins; all sessions are by reservation only.

SMS compliance

SMS Consent Flow

This page documents the current SMS consent flow for guests who start and complete a reservation on Elahni.

Current opt-in path

Guests visit elahni.com/reserve, choose a session, and continue to Elahni checkout.
Elahni verifies the guest's phone number with a one-time code. Phone verification confirms identity only; it does not opt the guest into SMS.
Checkout displays an unchecked optional SMS consent checkbox. Guests may leave it unchecked and still complete the purchase.
If a guest actively checks the box, Elahni records that consent with the booking/contact record and uses it for booking-related text messages.
Guests can opt out at any time by replying STOP, or request assistance by replying HELP.

Consent checkbox example

Optional: I agree to receive booking-related text messages from Elahni, including confirmations, reminders, updates, follow-ups, and customer care.

Message frequency varies. Message and data rates may apply. Reply STOP to opt out, HELP for help. Consent is not a condition of purchase.

Terms: https://elahni.com/terms
Privacy: https://elahni.com/privacy

The checkbox is displayed unchecked by default and requires an active guest action. Guests can complete checkout even if they do not check the box.

Phone number collection

Elahni collects and verifies the phone number during native checkout, or uses the verified phone already associated with the guest's signed-in account.

Elahni uses that phone number only for booking-related and customer-care text messages when the guest has opted in.

Messages guests may receive

Booking confirmations
Appointment reminders before scheduled sessions
Session updates, such as timing or operational changes
Post-session follow-ups and feedback requests
Customer service responses when a guest contacts Elahni

Message frequency varies based on guest activity. Message and data rates may apply.

Sample SMS messages

Elahni: Your Temperature Contrast session is confirmed for Apr 28 at 6:00 PM. Reply STOP to opt out, HELP for help.

Elahni: Reminder - your session is tomorrow at 6:00 PM at 12 W 27th St, 2nd Floor. Reply STOP to opt out, HELP for help.

Elahni: Thanks for visiting. How was your session? Reply here and our team can help. Reply STOP to opt out, HELP for help.

Legal links

Elahni does not sell or share mobile phone numbers or SMS consent data with third parties for their own marketing or promotional purposes. We may share phone numbers with service providers solely as needed to deliver SMS messages and operate our services.