If the sick person cannot sit:
• pray lying on the back or on the side with head gestures;
• lying on the back is preferred in the source;
• place support under the head so the face is directed toward the Qiblah rather than straight upward;
• raise the knees when possible so the legs are not stretched directly toward the Qiblah.
The posture is adjusted to preserve as much of the prayer form as the illness allows.