Blackout & Environment (3 products)
The $18 blackout solution that beats $200 curtains. Data from 847 r/sleep threads.
Temperature (2 products)
The cooling method that beats expensive pods at 1/10th the cost.
Sound (2 products)
Pink noise vs white noise: the data on which one keeps you in deep sleep longer.
Timing & Light (2 products)
The sunrise alarm that moves sleep onset by 23 minutes on average.
Supplements (3 products)
The one supplement with consistent evidence. The two Rick takes that Dr. Chen approved.