A 90-minute class. Way back in the good old days (2009-2015), that was the norm at studios, because it works so potently at providing adequate time for a complete asana practice with a proper length Savasana to rejuvenate the body and calm the mind.
Often in modern times, we're trying to cram too much into an hour long class, and something is lost. There's some unexplainable magic in doing a complete sequence. In my view, that comes from taking time to connect with the breath, and having a space that allows for stillness after movement, allowing the fog of the mind to clear sufficiently for the inner-wisdom to shine through.
We will close class with a long rest (savasana), pranayama (breathing practice) and a brief meditation mostly in silence.