ABSTRACT The HEPOE (High Entropy Predictive Organization Efficiency) Theory redefines High Ability/Giftedness as the "Sentinel Phenotype", a high-fidelity sampling system structurally optimized for free energy minimization. A persistent clinical paradox in this population is the frequent observation of abbreviated sleep cycles, conventionally pathologized as insomnia or generalized anxiety. This paper proposes a bioenergetic extension of the HEPOE framework, hypothesizing that the abbreviated sleep architecture in Sentinels represents an accelerated homeostatic maintenance cycle rather than a dysfunction. By intersecting the kinetics of the glymphatic system and sleep spindle density with the metabolic demands of the Parieto-Frontal Integration Theory (P-FIT), we mathematically model the "Fast Re-solver" capability. We hypothesize that the Sentinel hardware possesses a hyperdynamic neurovascular coupling and an overexpression of Aquaporin-4 (AQP4) channels, driving a non-linear, extreme-efficiency clearance of neurotoxic byproducts (lactate/glutamate) via cerebrospinal fluid (CSF). Concurrently, an elevated density of sleep spindles enables rapid synaptic downscaling. Consequently, the Sentinel hardware achieves systemic solvency (S_0) in compressed temporal windows, strictly contingent upon environments with near-zero informational entropy (). An experimental neuroimaging design using Phase-Contrast fMRI and EEG is proposed to empirically validate this thermodynamic optimization. Keywords: HEPOE Theory. Sentinel Phenotype. Glymphatic Clearance. Sleep Thermodynamics. Predictive Processing. Synaptic Downscaling. Bioenergetic Solvency. Aquaporin-4 (AQP4). Landauer's Principle. Neurodivergence.