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Patient positioning aids designed to keep patients lying on a fixed position while sleeping to help in the treatment of positional obstructive sleep apnea and/or snoring. These devices typically consist in a dedicated pillow that bends the head and neck forward and lift the chin up as much as possible obtaining a position known as \'sniff position.\' That position contributes to the opening of the upper airway breathing tract. Positioning aids intended to treat obstructive sleep apnea and snoring by allowing patients to sleep on one side but prevent sleeping on the supine position are also available.
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