How to Set Up and Use Nanit Breathing Wear Pajamas for Accurate Sleep Tracking

Nanit’s Breathing Wear pajamas — including the Breathing Wear Sleeping Bag and the Cammies — are designed to work with your Nanit Smart Baby Monitor to track your baby’s breathing and sleep patterns without any extra sensors or bands. But to get accurate data, you need to set them up correctly. This guide walks you through the process step by step, from choosing the right size to calibrating the pattern inside the camera app.

Whether you’re using the Breathing Wear Sleeping Bag for a newborn or the two-piece Cammies for a toddler, the setup is similar. The key is making sure the pattern on the fabric is fully visible to the camera and that you complete the in-app calibration. Let’s go through it so you can start getting reliable sleep insights tonight.

What You Need Before You Start

Before you begin, make sure you have your Nanit Smart Baby Monitor + Flex Stand (or another mount) installed and connected to the Nanit app. You’ll also need the correct size of Breathing Wear for your baby’s age and weight. The Breathing Wear Sleeping Bag is available in sizes for newborns up to toddlers, and the Cammies come in two-piece sets for older babies. Check the sizing chart on the product page to ensure a snug but comfortable fit — loose fabric can obscure the pattern and affect tracking.

You’ll also need your baby’s crib or bassinet set up with a firm, flat mattress. The Breathing Wear works best when the baby is placed on their back with the pattern facing upward toward the camera. Avoid using loose blankets or stuffed animals in the crib, as they can interfere with the camera’s view.

• Tip: Wash the Breathing Wear pajamas before first use to remove any factory residues and soften the fabric. Follow the care instructions on the label.

Step-by-Step Setup in the Nanit App

Open the Nanit app on your phone and navigate to the settings menu for your camera. Look for the “Breathing Wear” option — it’s usually under the “Sleep Tracking” or “Insights” section. Tap “Add Breathing Wear” and follow the on-screen prompts. You’ll be asked to select the type of Breathing Wear you’re using (Sleeping Bag or Cammies) and the size. The app will then guide you through a calibration process.

During calibration, you’ll place your baby in the crib wearing the Breathing Wear, then position the camera so the pattern on the fabric fills the on-screen outline. The app will show a green checkmark when the pattern is properly aligned. This step is critical — if the pattern is too small, too large, or partially hidden, the camera won’t be able to detect breathing movements accurately. Once calibrated, the app will confirm that breathing detection is active.

• Tip: Calibrate during a time when your baby is calm, such as right before a nap. A moving baby can make alignment tricky.

Daily Use and Best Practices

After setup, the Breathing Wear will automatically track your baby’s breathing rate and sleep quality each time they wear it. Make sure the pattern is clean and wrinkle-free before putting it on — wrinkles or folds can confuse the camera. Also, check that the camera’s view isn’t blocked by crib railings, toys, or blankets. The Nanit app will show a live breathing rate on the screen, and you can view historical data in the Insights section.

If you notice the tracking seems off, try re-calibrating. This is especially important if you switch between different types of Breathing Wear (e.g., from Sleeping Bag to Cammies) or if you move the camera to a different position. The app will let you recalibrate at any time from the settings menu. For the most accurate results, use the same Breathing Wear consistently and keep the camera position stable.

• Tip: If you travel, bring the Breathing Wear and your Nanit Travel case to keep everything organized. The calibration process is the same on any Wi-Fi network.

Troubleshooting Common Issues

If the app shows “Pattern Not Detected” or “Calibration Failed,” first check that the pattern is fully visible in the camera frame. Adjust the camera angle or move the crib slightly. Also, ensure the room is well-lit — the camera needs enough light to see the pattern. If you’re using a nightlight, make sure it doesn’t cast shadows directly on the pattern. Another common issue is that the Breathing Wear is too large, causing the pattern to bunch up. Try a smaller size if the fit is loose.

If breathing detection stops working mid-sleep, check that your baby hasn’t rolled onto their stomach, covering the pattern. The Nanit camera can still track breathing from the side, but accuracy may decrease. Finally, make sure your Nanit app is updated to the latest version, as updates often include improvements to breathing detection algorithms.

• Tip: If you’re still having trouble, contact Nanit support through the app. They can review your camera’s view and suggest adjustments.

Setting up Nanit Breathing Wear pajamas is straightforward once you know the steps. By choosing the right size, calibrating carefully, and following daily best practices, you’ll get accurate sleep and breathing tracking that gives you peace of mind. Whether you’re using the Breathing Wear Sleeping Bag for a newborn or the Cammies for a toddler, the process is the same — and the insights are invaluable.