Burt's Bees Baby Thermal Jumpsuit: Layering for Cold Rooms
By Healthy Horizons Breastfeeding Centers, Inc. | Published: 2026-11-03
Category: How-to Guides
Learn how to layer a thermal jumpsuit for chilly rooms, get the fit right, and care for the stripe thermal knit so your baby stays warm and comfortable.
Quick answer
Use the Burt's Bees Baby Classic Stripe Thermal Jumpsuit as a middle layer over a thin bodysuit, then add a sleep sack or blanket only if the room stays below about 68°F (20°C). Check the neck and cuffs for a snug but not tight fit, and always feel your baby's chest or back to confirm they are warm, not sweaty.
Why a thermal jumpsuit works as a middle layer
A thermal knit traps warmth without the bulk of a fleece or quilted suit, so it fits comfortably under a sleep sack or light blanket. The Burt's Bees Baby jumpsuit has a button henley that makes overhead dressing easier, and nickel-free snaps along the diaper line let you change diapers without removing the whole layer. Rib knit cuffs help keep cold air from creeping up the legs.
The trade-off is that a thermal jumpsuit is not a substitute for a coat outdoors or in a very cold room. It is best used indoors as a middle layer, or as a single layer in rooms that stay around 68–72°F (20–22°C).
How to judge fit without guessing
The jumpsuit is available in sizes, but the catalog does not list a size chart, so use your baby's current height and weight as a starting point and check the fit on. You should be able to slip two fingers under the neckline and cuffs, and the fabric should not bunch at the shoulders or pull at the snaps.
If the jumpsuit is too loose, it can ride up and leave the lower back exposed; if it is too tight, it can restrict movement and make diaper changes difficult. When in doubt, size up rather than down, because the thermal knit has a little extra stretch.
When to add or remove a layer
A common mistake is dressing a baby for the coldest possible room all day. Instead, check the room temperature and your baby's chest or back every couple of hours. If the skin feels hot or damp, remove the outer layer; if it feels cool, add a thin blanket or sleep sack.
Keep in mind that the jumpsuit's thermal knit is warm but not windproof or waterproof, so it is not a safe substitute for outdoor winter gear in a car seat or stroller.
Step-by-step layering routine for cold rooms
- Start with a thin base layer: Put your baby in a snug-fitting cotton bodysuit or long-sleeve top and leggings. Avoid thick or fleecy base layers, which can cause overheating when worn under a thermal jumpsuit. Check that the base layer is smooth and not bunched under the jumpsuit.
- Put on the thermal jumpsuit: Unbutton the henley, guide your baby's arms and legs into the jumpsuit, then fasten the snaps along the diaper line. Make sure the cuffs sit at the wrists and ankles, not pulled up over the hands or feet. Do a two-finger check at the neck and cuffs to confirm a safe fit.
- Add an outer layer only if needed: If the room is below 68°F (20°C), add a sleep sack or a light blanket over the jumpsuit. If the room is 68–72°F (20–22°C), the jumpsuit alone may be enough. Never use a loose blanket in a crib for babies under one year. Feel your baby's chest or back after 20 minutes to decide if the outer layer is necessary.
- Check for overheating regularly: Touch your baby's chest or back every few hours. If it feels hot or damp, remove the outer layer or the jumpsuit. If it feels cool, add a thin layer. Keep the room between 68–72°F (20–22°C) when possible. Do not rely on hands or feet to judge temperature; they are normally cooler.
- Care for the stripe thermal knit: Turn the jumpsuit inside out before washing, use a gentle cycle with cold water, and tumble dry low or lay flat to dry. Avoid fabric softener, which can reduce the stretch and softness of the thermal knit. Check the care label for any specific washing instructions before the first wash.
Product facts
- Burt's Bees Baby Classic Stripe Thermal Jumpsuit: Soft thermal knit with a little extra stretch and rib knit cuffs. The stretch helps the jumpsuit move with your baby, and the cuffs keep cold air out at the ankles.
Burt's Bees Baby Classic Stripe Thermal Jumpsuit - Burt's Bees Baby Classic Stripe Thermal Jumpsuit: Button henley and nickel-free snaps along the diaper line. The henley makes overhead dressing easier, and the snaps let you change diapers without removing the whole layer.
