Is it permissible to pray on a thick wool rug, kneeling and placing the feet on it, while the forehead touches the ground directly?

There is no objection to standing or prostrating on a soft prayer rug made of wool or other materials, as long as it compresses underneath and the limbs are stable on it. It is permissible to prostrate on a barrier such as wool, hair, or fur. It is preferable for the worshipper to have direct contact with the prayer area with their hands and forehead, though it is not obligatory. The prayer is valid even with a barrier between the forehead and the ground, such as clothing or a turban. However, it is disliked to abandon direct contact without an excuse.