We learn in hypnosis that everyone relates to the world through their senses.  Typically each person has a dominant sense that they use most often, and it is rarely the sense of smell.  That’s not to discount that sense, however.  It is very powerful in evoking certain emotions and feelings.

German researchers recently conducted a study to see if scent can effect your dreams.  Fifteen women were given the scent of roses, rotten eggs, or no scent at all, after they entered REM sleep  - that depth at which we dream.

After waiting one minute, the researchers woke the women up.  The women who had been given the scent of roses had pleasant, positive-feeling dreams.  For the women who smelled rotten eggs, their dreams were negative.

Seems  like it would be a good idea to have some fresh flowers in your bedroom.