The Soft Telescopic Sleep Herbst from Great Lakes Orthodontics Ltd offers superior patient comfort and retention, and allows some lateral and vertical movement without disengaging the appliance. Fabricated using low profile, reinforced EVA material, this appliance is proven effective for chronic snoring and mild to moderate obstructive sleep apnea. A threaded telescopic mechanism provides controlled 1/8 to 1/4 mm incremental advancements up to 5 mm with a 1 mm retrusion. Available in white (standard), green, red, blue, and black. All Herbst Sleep appliances fabricated by Great Lakes are approved for Medicare reimbursement.