Sonic Yin Yoga Studio, Hell's Kitchen: Wednesday Night Yin

Sonic Yoga, which now goes by Sonic NYC, teaches Yin Yoga twice a week from a second-floor studio at 944 8th Ave, between 55th and 56th streets in Hell's Kitchen. The Wednesday class starts at 7:45 pm in the Chandra room and the Sunday class at 5:30 pm in the Surya room, and a single in-studio class costs $39 on the posted rate card. For anyone hunting a yin yoga studio near Columbus Circle, it is one of the few independent rooms left on this stretch of Eighth Avenue.

Sonic opened in 2001, and its about page says it has welcomed more than 30,000 students and trained almost 2,000 teachers since then. The founder was Jonathan Fields, a former lawyer turned author, according to his publisher's biography. The old sonicyoga.com address now forwards to sonicnyc.com, and the schedule, prices and rules all live there, so do not be thrown if a saved bookmark lands on the new name.

The teacher training is the reason many New York instructors know the room. Sonic runs a Yoga Alliance 200-hour program, a 300-hour advanced track and a mentor program, and has been certifying teachers for more than 20 years. The 200-hour course covers anatomy and sequencing, so the studio has a deep bench of teachers who know how to modify a long hold for tight hips or a sensitive lower back.

Both yin sessions are listed as 50-minute classes, although the Mindbody calendar blocks them as 45 minutes on the clock, so plan to be on the mat for the full listing and out the door shortly after. Mitch Hipp teaches the Wednesday evening class in Chandra, the smaller of the rooms, and Taquice Campbell takes the Sunday late-afternoon class in Surya. Expect long holds of several minutes in floor shapes such as saddle, sphinx and a reclined twist, with blocks and bolsters on hand.

Sonic is not a hot studio, and its FAQ says so plainly, which makes it a sensible counterweight to the heated chains around Midtown. There are two restrooms and four changing stations, enough to switch out of work clothes without a queue on a weeknight. If yin feels too slow, look at Lunar on the same schedule, a class built around releasing tension and settling the body for deep sleep, which overlaps in spirit but moves a little more.

The two rooms are named for the sun and the moon in Sanskrit, Surya and Chandra, and the yin schedule follows that logic loosely: the moon room hosts the weeknight session, when most people arrive straight from Midtown desks, and the sun room carries the Sunday class before the week starts again. Both classes are also bookable through ClassPass and Wellhub, so app users share the same mats as direct members; reserving through Sonic itself is the simplest way to see real-time spots.

The single in-studio class is $39, and a pack of ten in-studio classes is $329, both listed on the pricing page, which brings each class down to about $33. One week of unlimited classes is $108, the better deal for a visitor staying in Midtown: take Wednesday's yin, Sunday's yin and four flow classes in between, and the week costs less than half of the $234 those six classes would run at the single rate. Anyone who cannot get to Eighth Avenue on a given night can stream instead, and a new student's first online class is $12.

Regulars choose between one month of unlimited classes at $229, three months at $529, the VIP monthly all-access pass at $179 a month, or a full year at $1,999. An honest call: if yin is the only class you plan to take, skip the memberships, since two yin slots a week will not justify $179 a month; the ten-pack covers ten weeks of Wednesdays. Livestream options start at $15 for a single drop-in and $79 for a month of unlimited online classes.

First-time visitors are asked to arrive 15 minutes early to sign in. Reservations not present five minutes before class are forfeited, and late arrivals are not accepted more than five minutes after the start, so an Eighth Avenue bus crawl can cost you the class. Cancel at least three hours ahead for full credit; inside that window Sonic charges a $10 fee or the class is forfeited completely.

Bring a mat or rent one for $3, and leave shoes and coats in the lobby before you walk into the room. The posted front desk hours on the pricing page are Monday - Friday 9am - 9pm and Saturday and Sunday 9am - 6pm. The studio is a walk-up on the second floor, worth knowing if you are coming with a knee or hip that yin is meant to ease.

What to bring is short: a mat if you own one, layers, and socks for savasana, since yin cools the body during long holds and the end of a 45-minute stretch on the floor can feel colder than you expect. Eat lightly beforehand. Long forward folds on a full stomach are uncomfortable, and the Wednesday slot lands right in the dinner hour, which is one more reason to plan the meal for after class rather than before.

The closest trains are the N, Q, R and W at 57th Street and Seventh Avenue, and the A, B, C, D and 1 at 59th Street–Columbus Circle, each a few minutes' walk. Plan B if the Wednesday class is full: Sunday's 5:30 pm session in Surya is the other yin slot of the week, and the Lunar class covers similar ground on other evenings. If both are booked, follow the pricing page's advice for busier classes: reserve on the Mindbody App and arrive at least 10 minutes before the start.

After the Sunday class, walk north on Eighth Avenue to Columbus Circle and into Central Park at the Merchants' Gate while there is still light. On a Wednesday, the better move is to stay in the neighborhood: Ninth Avenue between 50th and 57th streets is one of Manhattan's densest restaurant strips, with dozens of small international kitchens a block west of the studio, and Carnegie Hall on Seventh Avenue is about a five-minute walk east if you planned a late concert.