Indeed. Without a good reference its just a repeated nonsense. Even if this is true, there must be limits on it. What qualifies as 'interruption' ? Does REM t

Indeed. Without a good reference its just a repeated nonsense. Even if this is true, there must be limits on it. What qualifies as 'interruption' ? Does REM taking 10ms counts as interrupted ? 100ms ? 1s ? 0ms (hard to believe this is actually possible). Its also known that some people require less sleep then others due to genetic factors. Perhaps 1m REM is enough for some...