And knowing what to look for can be one way to figure out a little bit more about your sleeping self. 'REM is the last stage of a sleep cycle, preceded by stage one (light sleep), stage two (when both the heart rate and body temperature decrease), and stages three and four (grouped together and often referred to as slow-wave sleep, or SWS),' wellness consultant Stephanie Gailing, MS, tells Bustle.ĭepending on things like your physical health, mental health, and even how deeply you're sleeping, you might be more likely to have certain types of dreams, than others. Read more: What Do Dreams About Cats Mean? Here's What Experts Sayĭuring a typical night, you're likely to go through four different stages of sleep, with each cycle lasting about 90 minutes. 'Dreams usually happen three to five times each night during REM sleep.' 'Dreams are a collection of involuntary thoughts, visual images, and emotional responses that occur during sleep,' Rose MacDowell, chief research officer at Sleepopolis, tells Bustle. While not all dreams types are created equal, they share the same characteristics.

And possibly even various other disorders and underlying issues. Whether you had a vivid dream, and woke up remembering every bizarre detail, or sat up in bed sweating after a nightmare, it can all help reveal the quality of your sleep. Depending on how well you slept, you might be more likely to have certain types of dreams than others.

Do dreams mean deep sleep