Y7 Yoga Studio – Upper East Side NYC – This Y7 Yoga Studio review covers my Upper East Side NYC sweat session Sassy was surprised about this class. In this class we had NO idea that this class was going to be in the dark, but dark with candles! Hard to take a photo as you can see! We loved it! Dark walls, hot temperatures and a very busy in and out. When we arrived the lobby was jammed with people coming and going. Bring your kit, bring your towel, bring your water – they have mats you can rent! To find out more NYC class reviews click HERE!