Unpleasant dreams are called nightmares. All of us have dreamed about something that made us sweat with horror at night. Frightening visions can be explained.

Here is a list of 6 major factors that affect your sleeping patterns. Study them and you might find the answer to your nightmares.

1. Smells

Smells have an impact on what kind of dreams come to us at night. Experts claim that unpleasant odors, such as sulphur, may lead to dreams we do not enjoy. On the contrary, a flora odor will be the reason why tonight you were dreaming about something wonderful. Studies have proved that a person cannot replicate these results in the bedroom by, for instance, spraying rose blossom aroma before going to bed. Any sudden aroma we smell at night may cause an unexpected effect.

2. Sounds

We hear various sounds at night while asleep and then interpret them sometimes in a very strange manner. For instance, the sound of your clock ticking may be the reason why last night you were dreaming about someone beating a drum. Our brain during sleep is extremely sensitive. Even the lowest sounds that we usually ignore by day may sound loud to us at night. Try out a curious hint: let a recording of sea wave or mountain spring play softly throughout the night. Maybe this will help you dream about the countryside and nature.