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A comment on Launch HN: Helio Sleep (YC S21) – One-stop portal for sleep apnea. Parent comment

Re:Launch HN: Helio Sleep (YC S21) – One-stop portal for sle... by Melatonic on Tuesday March 22, 2022 @05:00PM (#30771489)
Any good examples? When I was looking into this a few years ago most of them did not have favourable reviews by doctors and individuals. Do they still require batteries or are they passive?
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Re:Launch HN: Helio Sleep (YC S21) – One-stop portal for sle... by maxgreenfeld on Tuesday March 22, 2022 @05:24PM (#30771769)
These are passive devices. Some examples include Thornton Adjustable Positioner (TAP) devices, SomnoDent, Prosomnus, and others.
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