Maya-Nidra P2: Adaptive Vairagya and Dual-Phase REM/NREM Consolidation in Neuromorphic EEG Sleep Staging — Full Clinical Validation on Sleep-EDF Expanded

We present Maya-Nidra P2, advancing neuromorphic EEG sleep staging along three axes over P1 (DOI: 10.5281/zenodo.20301438). Advance A expands training from 1,000 epochs (20 subjects) to 415,961 epochs across 153 Sleep-EDF Expanded cassette recordings. Advance B introduces Adaptive Vairagya decay with per-stage scalars anchored to the ORCID base rate 0.002315. Advance C separates replay into dual REM/NREM ring buffers, introducing the REM/NREM consolidation ratio metric. WAKE accuracy reaches 82.7% (+20.2pp vs P1). REM/NREM consolidation ratio: 4.3200 vs P1 baseline 0.0000. Critical finding: Vairagya decay applied during training batches destabilises SNN convergence — correct placement is replay-only. The…