1

Boil water and prepare your mug

Bring a mug of water to a full boil, then let it sit for 30 seconds. You want it very hot — not simmering. This is what softens the device so it can mould to your teeth.

2 Submerge the device for 30 seconds

Place NoctaGuard in the hot water for exactly 30 seconds. It will become soft and pliable. Use a spoon to hold it down if it floats. Do not leave it longer — over-softening makes the impression less precise.

Tip: set a timer on your phone3

Cool briefly, then place in your mouth

Remove the device and dip it in cool water for 2–3 seconds — just enough so it won't burn. Then place it firmly against your upper teeth first, then press your lower teeth in. Bite down gently and hold for 60 seconds without moving.

Tip: keep your jaw slightly forward while biting — this is the position that helps reduce snoring4

Set the impression in cold water

After 60 seconds, transfer NoctaGuard to a glass of cold water for 2 minutes. This locks the impression in place. Check the fit — your teeth should have left clear, even marks in the material.

5

Adjust the jaw position if needed

NoctaGuard has adjustable settings that let you move the lower jaw forward in small increments. Start at the middle setting on your first night. If you wake up with no reduction in snoring, advance one position forward the following night. Most people find their ideal setting within 3 nights.

Tip: small adjustments work better than large ones — go one step at a time6

Wear it to sleep

Insert NoctaGuard before bed. It may feel slightly unusual the first two or three nights — this is normal. Your jaw muscles adapt quickly. Most users report it becomes unnoticeable within a week.