For most people, yes. The nose filters, warms, and humidifies the air, which is gentler on the throat and makes for a more restful sleep. Mouth breathing, on the other hand, often leads to a dry mouth and shallower sleep.

Keep your nose clear and your mouth gently closed at night—that’s what Nose Tape and Mouth Tape are designed for. If you also consciously breathe through your nose during the day, the change usually becomes a habit after one to two weeks. Here’s the best way to go about it:

• Consciously breathe through your nose during the day: A few minutes at your desk, while walking, or while reading. This paves the way for the night.
• Clear your nose in the evening: If your nose is often blocked, this is where you start with the Nose Tape.
• Keep your mouth gently closed at night: The Mouth Tape takes care of this without you having to focus on it.
• Stick with it. Give yourself one to two weeks. After that, nasal breathing usually happens on its own for most people, even without help.

If the dry mouth is caused by mouth breathing, yes. The tape keeps your lips closed so that air flows through your nose and your throat doesn’t dry out. If your mouth is still dry, see a doctor to determine the cause.

Most people get used to it after a few nights. You can breathe normally at any time and remove the tape immediately. However, it’s only intended for people with a clear nose.

Many people sleep more soundly on the very first night and wake up feeling less parched. Allow one to two weeks for nasal breathing to become completely natural.