Adam Clarke's Commentary on the Bible - Mark 4:38
On a pillow - Προσκεφαλαιον probably means a little bed, or hammock, such as are common in small vessels. I have seen several in small packets, or passage boats, not a great deal larger than a bolster. read more
Adam Clarke's Commentary on the Bible - Mark 4:37
A great storm of wind - See on Matthew 8:24 ; (note). read more