Quick Answer

Layer an organic zipper romper as the base, add a cotton or wool mid layer, and top with a wearable blanket or sleep sack for cold nights. Avoid loose blankets and overheating by checking your baby's neck temperature.

Why Start with an Organic Zipper Romper?

An organic zipper romper is ideal for layering because it's made from breathable, chemical-free cotton that regulates temperature better than synthetic fabrics. The 2-way zipper also makes diaper changes quick without disturbing the whole outfit.

Avoid Overheating with the Right Fabrics

Overheating is a common concern for babies on cold nights. Stick to natural fibers like organic cotton and merino wool for mid layers. Avoid fleece or polyester next to the skin, as they trap moisture and can cause sweating.

Step-by-Step Layering Guide

  1. Start with the Organic Zipper Romper as the Base Layer: Put the romper directly against your baby's skin. The organic cotton is soft, breathable, and tagless for comfort. Make sure the fit is snug but not tight—check for any bunching around the neck or legs. Common mistake: choosing a romper that's too large. A loose base layer can bunch up and create pressure points or allow cold air in.
  2. Add a Mid Layer for Extra Warmth: If the room is below 68°F (20°C), add a cotton long-sleeve bodysuit or a thin merino wool onesie over the romper. Avoid thick sweaters that can overheat the baby. The mid layer should be close-fitting but not restrictive. Checkpoint: Feel your baby's neck or chest. If they feel sweaty or hot, remove the mid layer. Overheating is a SIDS risk factor.
  3. Finish with a Wearable Blanket or Sleep Sack: Use a sleep sack or wearable blanket rated for the room temperature. Do not use loose blankets in the crib. The sleep sack should allow free hip movement and not ride up over the face. Adjust the tog rating: 0.5 tog for 75-80°F, 1.0 tog for 70-75°F, 2.5 tog for 65-70°F. Common mistake: using a sleep sack that's too thick for the room. Always check the tog rating and your baby's actual temperature, not just the thermostat.

Product Spotlight

  • Bunny | Organic Zipper Romper: GOTS certified 100% organic cotton with a 2-way zipper that zips from neck down for easy dressing and from ankle up for easy diaper changing. The 2-way zipper lets you change a diaper without fully undressing your baby, keeping them warm and reducing nighttime disruptions.

    Bunny | Organic Zipper Romper

    Bunny | Organic Zipper Romper