This glossary of dreamy terms is a continuous work in progress. If there is a sleep/dream term you come across on this website, or anywhere else for that matter, or that you’ve heard somewhere and would like like to see it added to the glossary, please get in touch. The comments section is open. At the moment most terms are limited to brief definitions, maybe with some added extras, but I will continue to add to them.
The definitions I give are based on my experiences with dream research, so it’s likely that others may have other definitions. I am interested to hear about your understandings of and experiences with these phenomena, so please feel welcome to comment!
Click on the link below to see definitions of the following terms:
Rapid-eye-movement (REM) sleep
REM sleep behaviour disorder
Slow wave sleep
Stage 1 non-REM sleep
Stage 2 non-REM sleep
Stage 3 non-REM sleep