Product Reviews

Rating: 4.5/5

Review: Is the Blueair Blue Pure 311i Max the Quietest Air Purifier for Sleep?

For biohackers, air quality is non-negotiable. We tested the Blueair 311i Max to see if its 'HEPASilent' tech actually delivers clean air without disrupting your Deep Sleep

Sleep Optimization
February 17, 2026

Rating: 4.8/5

Review: Are Mack’s Ultra Soft Foam Earplugs the Best for Deep Sleep?

For less than the price of a coffee, Mack's offer an industrial-grade Noise Reduction Rating (NRR) of 33dB. We tested these simple foam plugs to see if they can truly protect your Deep Sleep from city noise and snoring partners

Sleep Optimization
February 17, 2026

Rating: 4.6/5

Review: Are Perytong Sleep Headphones the Best for Side Sleepers?

Most headphones are painful for side sleepers. We tested the Perytong headband to see if you can listen to binaural beats and sleep protocols comfortably all night long without ruining your sleep architecture

Sleep Optimization
February 13, 2026