Sleep & 3AM Wakeups

Chronic inflammation and insomnia can reinforce each other in a bidirectional relationship. Inflammatory cytokines such as IL-6, TNF-α, and IL-1β help regulate sleep at physiological levels; when inflammatory activity is prolonged or higher-dose, these same pathways can fragment sleep and alter REM/NREM balance. In one human study, a single night of partial sleep deprivation increased

The glymphatic system is the brain’s waste drainage network – a fluid transport pathway that clears metabolic byproducts, including amyloid-beta and tau, from brain tissue. It is most active during sleep and is strongly linked to NREM slow-wave sleep, when the interstitial space between brain cells expands by approximately 60%, allowing cerebrospinal fluid to flush

Evidence suggests poor sleep can contribute to inflammatory signaling that may involve the brain, and the relationship can run in both directions. In humans, partial sleep loss significantly increases NF-kB activation in peripheral immune cells, and repeated partial sleep restriction raises inflammatory markers such as IL-6 and CRP. In animal studies, sleep deprivation activates microglia,

When intestinal barrier integrity breaks down, bacterial endotoxins called lipopolysaccharides (LPS) enter the bloodstream and activate inflammatory pathways that reach the brain. This triggers the same NF-kB and cytokine cascade that fragments sleep architecture. The relationship runs both ways — sleep restriction degrades gut microbiota richness within three nights, which may further compromise the barrier