A third of women have this same nightmare...

We all have bad dreams. But what's our most common nightmare?

According to a new study, from American company Amerisleep, the dream we've all experienced is about our partners cheating.

The survey, which looked at 1,000 people, found that in the past year a third of women have had a nightmare about their partner being unfaithful to them.

And men?

Interestingly, they were more likely to dream that they were the one cheating on their partner.

So now that we know sex and relationship themed dreams are the most common for everyone - here are the other dreams we frequently have:

• Being chased
• Falling
• Running late
• The future
• Being back in school
• Teeth falling out
• Death