The Science of Better Sleep
Understanding the physiological impact of acoustic masking and light suppression on human sleep architecture.
Preventing "Micro-Arousals"
Research published in the Journal of Clinical Sleep Medicine indicates that environmental noise spikes (snoring, traffic, sirens) trigger micro-arousals. These are brief shifts in brain activity that don't always wake you up fully, but instantly pull you out of Deep (N3) and REM sleep stages.
Light Suppression & Melatonin
A study in Critical Care found that patients using total-blackout eye masks had significantly higher nocturnal melatonin levels and lower cortisol (the stress hormone). Even low levels of ambient light can suppress melatonin production by up to 50%.
Second-Hand Sleep Deprivation
The Mayo Clinic reports that partners of snorers lose an average of one hour of sleep per night. Over a 20-year period, this accumulates to roughly two full years of lost life-recovery time.