The Complete Guide to Interpreting Your Dreams

by Stearn Robinson - Tom Corbett
You are in for a period of beneficial changes if you dreamed of sleeping on a cot, unless the cot broke under you, in which case you are being alerted to a possible sudden letdown by someone on whom you rely.

Ten Thousand Dream Interpretation

by Gustavus Hindman Miller
To dream of a cot, foretells some affliction, either through sickness or accident. Cots in rows signify you will not be alone in trouble, as friends will be afflicted also.

Dream Dictionary Unlimited

by Margaret Hamilton
A temporary situation of difficult circumstances, i.E. One who is totally helpless, sick, etc., Lies helpless on a stretcher or cot