How to Fit and Adjust the Nanit Breathing Band for Secure Sleep
By Nanit Smart Baby Monitor | Tracks Sleep and Breathing | Published: 2026-11-02
Category: How-to Guides
Learn how to put on the Nanit Breathing Band correctly, choose the right size, and adjust it for comfort and secure sleep tracking.
Quick answer
For a secure fit, slide the Nanit Breathing Band onto your baby's chest so the sensor area sits centered over the breastbone, then adjust the hook-and-loop closure until it lies flat and snug—tight enough to stay in place but loose enough to slip two fingers underneath.
Why proper fit matters for breathing tracking
The Breathing Band is designed to work with the Nanit Smart Video Baby Monitor to track breathing. If the band is too loose, it may shift during sleep and affect tracking; if it's too tight, it can cause discomfort and discourage your baby from wearing it. A correct fit balances security and comfort so the band stays in place all night.
Choosing the right size
The Breathing Band comes in different sizes. Select the size that matches your baby's current weight and chest circumference according to the size chart. A band that is too small will be tight and may leave marks, while one that is too large can ride up or down. If your baby is between sizes, size up only if the smaller size cannot be adjusted snugly.
When to adjust or change the fit
Recheck the fit as your baby grows, after washing the band (cotton may shrink slightly), and if you notice the band leaving red marks or slipping out of place. During warmer nights, you may need to loosen it slightly to allow for airflow and comfort.
Step-by-step fitting and adjustment
- Lay the band flat and locate the sensor: Place the band on a flat surface with the sensor area facing up. Identify the inner side that touches the skin and the outer side that faces the monitor. Double-check that the sensor is not twisted or folded before putting it on.
- Slide the band onto your baby: With your baby lying down or sitting calmly, gently slide the band over their head and down to the chest, or wrap it around the chest and fasten at the back, depending on the design. Ensure the sensor sits centered over the breastbone. Avoid pulling the band over the face; keep it clear of the neck.
- Adjust the closure for a snug fit: Fasten the hook-and-loop closure and adjust until the band lies flat against the skin without wrinkles. You should be able to slide two fingers comfortably under the band. If you can't fit two fingers, it's too tight; if the band slides down easily, it's too loose.
- Check comfort and range of motion: Have your baby move their arms and legs, and take a few deep breaths. The band should not restrict movement or breathing, and your baby should seem comfortable. Watch for signs of discomfort like tugging at the band or redness on the skin.
- Verify placement with the monitor: Turn on the Nanit monitor and check that the band is within the camera's view and that the breathing tracking is active. Adjust the band or camera angle if needed. Make sure the sensor is not covered by clothing or blankets.
- Recheck after washing and growth: After each wash, recheck the fit and adjust as needed. As your baby grows, regularly verify that the band still fits securely and comfortably. Replace the band with a larger size if you can no longer achieve a snug fit.
Product facts
- Breathing Band™: The Breathing Band is made of 100% cotton and is washable, with no charging needed. This means you can keep it clean easily and never worry about battery life, but you should check the fit after each wash because cotton can shrink.
Breathing Band™
