Winter nights can feel challenging when you’re a new parent. Balancing room temperatures, choosing sleepwear, and keeping your baby comfortable without overheating can feel overwhelming. These tips are designed to make bedtime simpler and more reassuring.
Creating a Comfortable Sleep Environment
A cosy, safe sleep environment helps your baby settle and sleep peacefully:
- Aim for a room temperature of around 16–20°C, which is comfortably cool for most babies
- Avoid loose blankets, quilts, duvets, pillows, or toys in the sleep space. A well-fitted sleep bag keeps your baby warm and comfortable without extra layers
Understanding TOG for Winter Sleep
TOG stands for Thermal Overall Grade, which measures how warm a sleep bag is. Understanding TOG can help you choose the right baby sleeping bags for winter nights:
- A 2.5 TOG bag is ideal for most UK winter rooms at 16–20°C
- It keeps your baby comfortably warm without additional blankets
- You can adjust what your baby wears underneath depending on the temperature of the room
Using the right TOG helps take the guesswork out of winter bedtime and keeps your baby comfortable throughout the night.

Dressing Your Baby for Winter Sleep
A simple baby room thermometer can help ensure your nursery stays in the right temperature range, making it easier to choose the right layers.
- Check the temperature of the room and dress baby according to the temperature
- Gently feel your baby’s neck or tummy, they should feel warm and cosy, but not sweaty. Hands and feet may feel cooler, which is completely normal.
How a Sleep Bag Helps
Baby sleeping bags are a simple, reassuring way to keep your baby comfortable throughout the night. They:
- Keep your baby snug without loose blankets.
- Allow freedom of movement while maintaining warmth.
- Adapt as your baby grows and sleep patterns change.
Purflo All-Seasons 2.5 TOG Baby Sleeping Bags
Purflo’s All-Seasons 2.5 TOG Swaddle to Sleep Bags and Cuddle to Sleep Bags are designed to make winter nights easier:
- Swaddle to Sleep Bag: A swaddle bag suitable for newborns up to around four months. Arms can start in for a gentle swaddle and open as your baby grows. Breathable panels help maintain a comfortable temperature.
- Cuddle to Sleep Bag: Ideal for babies from three to twelve months. Designed to give your baby space to move and stretch while staying cosy, with breathable panels to help maintain a comfortable temperature throughout the night.
These sleep bags grow with your baby, helping simplify bedtime and keeping both baby and parent comfortable.
Winter Sleep Tips
- Lay your baby on their back to sleep
- Use a well-fitted sleep bag instead of loose blankets
- Adjust layers based on room temperature and your baby’s comfort
- Keep the room at a comfortably cool temperature
And Breathe…
Winter nights don’t have to be stressful. With the right sleep bag, right layering, and a cosy sleep environment, your baby can stay comfortable and calm, and you can breathe a little easier too.
While your baby’s Purflo sleep bag keeps them cosy and breathable, you can take a moment for yourself too. A little preparation and a comfy routine make bedtime calmer for everyone, giving both baby and parent a more peaceful night.
For personalised advice about your baby’s sleep and comfort, it’s always a good idea to contact your healthcare provider, health visitor, or midwife. They can help you make choices that suit your baby’s needs and your home environment.