A sleep and stress-reduction stack combining DSIP's direct sleep-promoting and sleep architecture-improving properties with Selank's daytime anxiolytic and mood-stabilising effects. DSIP is proposed to increase slow-wave delta sleep and normalise circadian sleep patterns by modulating hypothalamic sleep-wake centres, while Selank reduces anxiety, cortisol reactivity, and cognitive stress load that often prevents sleep onset. The combination targets both the quality of sleep and the psychological barriers to achieving it.