Deuteronomy 3:1-11

Here is what Liberty Bible Commentary has to say about King Og and his bed:

“The giants lived in Bashan even in Abraham’s day (Gen 14:5) and were called “Rephaim.”  King Og’s bed is mentioned by Moses.  It was twelve feet long and six feet wide.  This does not mean Og was that tall, because warriors normally had beds constructed which were somewhat longer than their stature.  But he was a giant, and Moses mentions the size of his bed to illustrate the great victory which the Lord had given them.”

Now that’s a king-size bed!