Professional
Technical
IVT
sleep onset REM episodes
Occurrence of REM sleep within 15 minutes of sleep onset, often indicating narcolepsy or severe sleep deprivation.
Full Definition
Sleep onset REM episodes (SOREMPs) are episodes where REM sleep occurs within 15 minutes of sleep onset, either during nighttime sleep or daytime naps. This phenomenon is highly suggestive of narcolepsy when multiple episodes occur during a Multiple Sleep Latency Test (MSLT). SOREMPs can also occur in conditions of severe sleep deprivation, shift work disorder, or certain psychiatric conditions. The normal sleep cycle typically requires 60-90 minutes before the first REM period, making early REM onset a significant diagnostic finding in sleep medicine.
Usage
Usage note: Commonly abbreviated as SOREMPs in clinical documentation.
In Context
- "The MSLT showed three sleep onset REM episodes, supporting the diagnosis of narcolepsy type 1." — Diagnostic report
- "Sleep onset REM episodes were observed in two of five nap opportunities during testing." — Sleep study interpretation
Also known as
SOREMPs
early REM onset
Don't confuse with
sleep onset REM period
REM rebound