Whether sleeping with your feet elevated is beneficial or not depends on the specific situation. If a normal person has no trauma and no neurological symptoms in the lower extremities, sleeping with the feet elevated is not necessary, as the position of the feet may change suddenly and be detrimental to sleep. On the contrary, if the lower limbs have neurological symptoms or lower limb edema, or lower limbs because of trauma and wear a brace, it is recommended to sleep at night with the affected limbs padded, generally at a height of about 50 centimeters, that is, the lower limbs and the bed surface to maintain an angle of 30 degrees range. The purpose of this is to promote blood return to the veins of the lower limbs to reduce swelling and pain.