Electrolux has tested vacuum cleaners sleeping compatibility in a sleep clinic. Results: The UltraSilencer is quiet enough to fall asleep to, and sleep next to when turned on and off.
The PHASMA! A Soundproof Mask for Gaming by Metadox — Kickstarter
Sleep Apnea Oral Appliance, The Silencer®, Dental Professionals
Jeep Universal Exhaust Muffler
Sleep clinic reveals that Ultra Silencer is sleep compatible – Electrolux Group
Apnea Suit
Improves Airflow: MUTE nasal dilators for sleeping help increase airflow through the nose during sleep. Alleviating congestion or restricted airways
MUTE by Rhinomed Nasal Dilator for Snore Reduction | Trial Pack | Increases Airflow | Anti Snoring Devices for Men | Nasal Dilators for Sleeping
Baby Shusher - The Original, Portable Sound Machine for Babies, Sleep Soother, Used by Pediatricians, Human Shhhh Sound, Attaches to Stroller, Shusher
Small Engine Muffler
A great night’s sleep awaits you with the Sealy Exuberant II Ultra Soft Mattress. Enjoy pressure-relieving comfort with their most premium memory
Sealy Posturepedic Plus Exuberant II Ultra Soft Mattress