Dreaming of lying in bed with a man is a warning sign as per dream interpretation and meaning. The dream means you will be in state of confusion in near future. There will be disappointments and frustration. It also means you will do something unwillingly. Dream of lying in bed with a man and you wake up terrified means you will not have the will power to say no to something you know is wrong.
Dream of lying in bed with a man and you are also a man means emotional issues. You will face crisis in life and will need help from a friend. The dream also means you will misunderstand a situation completely and as a result your words and actions will cause problems.
Dreaming of lying in bed with a man and you are a woman means a good relationship of yours will give wrong impression to others. It also means someone will try to take advantage of your crisis.