Good 😊👍 but, not easy. Must be continuous+unbroken, without even a glitch. 12+ hours. 7 days for non returner or arahantship, according to the 4 foundations of mindfulness. People underestimate the difficulty by far. People think it can be done casually, but that is totally not true. It takes everything a man has, even his 'life'. Only a few were able to sacrifice everything during the early teachings. Later in the Buddha's life, few attained.