Sleeping bag or blankets? How to choose
Short answer: Both can be safe. A well-fitted sleeping bag stops your baby wriggling under covers. Blankets must be lightweight and tucked no higher than the shoulders.
Step by step
- Sleeping bag: choose the size by weight, and a tog for the room.
- Blankets: lightweight, tucked firmly, baby feet to foot.
What the guidance says
- A well-fitted baby sleeping bag is an alternative to blankets. Most makers base suitability on weight (usually around 4kg) rather than age, so check the label.
- If you use sheets and blankets, tuck them in firmly no higher than shoulder height. One blanket doubled over counts as two.
- The Lullaby Trust does not publish a tog chart, because fabrics, layers and babies differ. Use the room temperature as a guide and check your baby's chest or neck.
- Avoid weighted swaddles, weighted blankets, weighted sleeping bags and sheepskins.
Shop at Baby Kingdom
- Large Muslin Square Swaddles 3pk
- 2.5 Tog Baby Sleep Bag 6-18 Months
- Large Muslin Squares Swaddles 3pk
- 2.5 Tog Baby Sleep Bag 0-6 Months
Check each product page for its exact dimensions, mattress size, age and weight limits and safety standards.
More advice
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Sources
- The Lullaby Trust: Baby mattresses and bedding (accessed 2026-10-21)
General information only, not medical advice. Always follow your product's instructions. If you are worried about your baby, contact your GP, health visitor or 111. In an emergency, call 999.