toddler laying on cot in Slumbersac

How to Keep Your Baby Warm and Safe in Winter

Keeping your baby snug in winter is important, but it’s just as vital to avoid overheating. From choosing the right TOG sleeping bag to layering safely, here’s how to keep your baby warm, comfortable, and safe during the colder months.

Finding the Right Balance

When temperatures drop, every parent wants their baby to feel cosy and protected. Yet wrapping them up too warmly can lead to overheating which is a known risk factor for SIDS (sudden infant death syndrome). The key is balance: keeping your baby comfortably warm without trapping too much heat.

Below, you’ll find practical tips for both night-time and daytime warmth to help your little one sleep safely and play happily through the winter season.

Night-Time Warmth: Safe Winter Sleep Tips

Keep the Room Between 16–20°C

Use a reliable room thermometer to make sure your baby’s nursery stays within the recommended range. A consistent temperature helps prevent both chills and overheating.

Use a Baby Sleeping Bag

A baby sleeping bag is one of the safest and most effective ways to keep your little one warm at night with no loose blankets, and no tucking worries. Sleeping bags maintain a steady temperature and ensure your baby sleeps securely.

Choose the Right TOG

For chilly rooms, a 3.5 TOG sleeping bag is ideal for temperatures below 18°C. These are designed with thicker padding for extra insulation, making them perfect for frosty nights. If your home is warmer, opt for a 2.5 TOG instead.

Try Long Sleeve Sleeping Bags

Our long-sleeve sleeping bags offer added warmth for cooler nights while keeping within baby sleep safety standards. The sleeves are not padded by design, providing comfort and protection without excess insulation.

Keep the Cot Away from Radiators

Avoid placing the cot near heaters, radiators, or direct heat sources, as this can make the sleeping environment too warm.

Check for Overheating

Feel your baby’s chest or the back of their neck. If the skin feels hot or clammy, remove a layer or switch to a lower TOG bag. Cool hands and feet are perfectly normal and not a sign your baby is cold.

Daytime Cosiness: Warmth with Flexibility

During the day, warmth should never come at the expense of comfort or freedom of movement. Babies and toddlers still need to wriggle, crawl, and play, even in winter.

Sleeping Bags with Feet for Active Little Ones

Our sleeping bags with feet are ideal for toddlers on the move. They offer the comfort of a sleeping bag with the flexibility of free feet which are perfect for naps, sofa snuggles, and playtime.

Detachable Sleeves for Versatile Warmth

Opt for sleeping bags with detachable sleeves, so you can easily adjust warmth as the day goes on. Simply use the press studs to attach or remove sleeves depending on temperature.

Layer with Sleepsuits and Bodysuits

A long-sleeve sleepsuit or cotton bodysuit under the sleeping bag provides a comfortable base layer. On particularly cold days, add a soft cardigan or blanket during playtime (but remove it for sleep).

The Secret to Safe Winter Warmth

✔ Choose a sleeping bag with the correct TOG for your room temperature
✔ Keep the cot away from direct heat
✔ Layer clothing lightly, adjusting as needed
✔ Check your baby’s chest or neck for comfort

Warm, safe, and snuggly = winter comfort done right.

Shop the Look

Keep your little one snug this season with our 3.5 TOG winter sleeping bags, sleeping bags with feet, and layering essentials for safe, cosy sleep day and night.