0401 Efficacy of Once-Nightly Sodium Oxybate (ON-SXB; FT218) By Narcolepsy Type: Post-hoc Analyses From the REST-ON Trial-V45IS1 0401 Efficacy of Once-Nightly Sodium Oxybate (ON-SXB; FT218) By Narcolepsy Type: Post-hoc Analyses From the REST-ON Trial-V45IS1 Download 0400 Sleep Onset REM Period (SOREMP); Beyond the Diagnostic Marker-V45IS1 0402 Efficacy of FT218, a Once-Nightly Sodium Oxybate Formulation, in Patients With Narcolepsy: Post-hoc Sensitivity Analyses From the REST-ON Trial-V45IS1