According to Osho, the 'best' meditation posture is simply whatever is most comfortable and non-disturbing for your body. Don't worship form; value ease. Sit, lie down, or stand, your inner being is unchanged. Choose a position that doesn't call attention to itself, so awareness isn't pulled to aches or strain. Practice anytime this condition is met, and deeper, wondrous experiences unfold.
Pick any comfy position that doesn’t bother your body, so your attention can rest quietly.