Next time that partner/lover/irritating sod who uses the last of the milk laying next you in bed starts snoring, try asking them what they were dreaming about the next morning. There's a good chance they won't remember, and that's because some scientists say it's nigh-on impossible to snore and dream at the same time.
Why is this, you ask? Maybe it has something to do with consciousness. Admittedly, it's hard to tell if you're a singleton. Finding out what you did when asleep is one of life's greatest mysteries. That is unless you find the fridge had been raided and your mouth is covered in chocolate pudding.
Seriously though, it has more to do with Non-REM Sleep. When you're not in that stage of slumber, dreams can't happen. You must be experiencing rapid eye movement (REM) in order to dream.