Yes—in 214 people with ongoing sleep trouble, dream sleep had more interruptions despite normal results on standard sleep measures. The study examined REM Sleep, the sleep stage named for rapid eye movements. Researchers looked at overnight sleep recordings from 1,049 people. These included 141 good sleepers and 908 people with long-term Insomnia / Difficulty Falling Asleep. Of those with sleep trouble, 214 had normal standard sleep measures. The other 694 had clear problems on those measures. Both groups with sleep trouble had more brief disruptions and awakenings during REM Sleep. They also had more rapid eye movements per hour than good sleepers. More of this stage involved bursts of eye movements rather than quiet periods. The source did not give exact sizes for these differences. The two groups with sleep trouble had similar numbers of interruptions per hour. But those with abnormal standard results stayed awake longer after waking from REM Sleep. That suggests how long an interruption lasts may matter, not just how often it happens. For BioSocial members, the key point is that sleep totals may miss details. A normal-looking summary does not necessarily capture an unbroken night. This study used overnight sleep recordings, not a wearable-based test. It did not establish a target number for home tracking. Comparing your REM Sleep numbers with notes about remembered awakenings could add context. Sharing those patterns here can also help separate measured sleep from felt sleep. Neither tells the whole story alone. What differences have you noticed between your sleep numbers and how your night actually felt?