Why Baby Sleeping Bags Are Essential for Safer Sleep

Looking for the perfect baby sleeping bag? At Slumbersac, our baby sleeping bags are designed to help your little one sleep safely, comfortably and consistently - day and night. A baby sleeping bag keeps your baby at a constant temperature, reduces the risk of overheating, and replaces loose blankets, which can be kicked off or pulled over their face during sleep.

Baby sleeping bags have become a basic for newborns, and for good reason. They help babies stay on their back while they sleep, as recommended by health professionals. And with no loose covers to worry about, you get peace of mind and a better night's sleep too.

Safe, Comfortable Sleep with Slumbersac Baby Sleeping Bags

At Slumbersac, we spent 15 years perfecting our baby sleeping bags, combining real parent insight with safety tested design. A Slumbersac sleep sack offers:

✔ Regulated body temperature all night

✔ Freedom to wriggle and kick without becoming uncovered

✔ Secure fit to reduce risks and encourage back sleeping

✔ Intertek tested certification to meet European Safety Standards

Our sleeping bags are made from soft, breathable 100% cotton or organic cotton which is gentle on delicate skin, machine washable at 60°C and tumble-dry safe.

Which TOG Baby Sleeping Bag Do You Need?


We offer baby sleeping bags in four TOG ratings (warmth levels) to suit every season and room temperature:

➤ 0.5 TOG – Lightweight with no padding for room temperatures above 24°C



➤ 1.0 TOG – Lightly padded, ideal for rooms between 18–24°C, with optional sleeves

➤ 2.5 TOG – All-season option (15–21°C), with optional sleeves

➤ 3.5 TOG – Thick padding, extra cosy for rooms below 18°C


Each baby sleeping bag is clearly labelled with its TOG rating, so you can easily choose the best one for your child. Use our TOG Guide for expert guidance on temperature and what to wear underneath.

Choosing the Right Baby Sleeping Bag Size


Slumbersac sleeping bags are available in six sizes, from newborn up to 10 years old. To find the best fit:

➤ Your baby’s feet should reach about ¾ of the way down the sleeping bag, leaving room at the bottom for kicking freely.

➤ The neckline should be snug, with just enough space for one finger between the neck and the fabric.

➤ Armholes should fit securely to prevent slipping while allowing natural movement.

Use our Size Guide to choose the right baby sleeping bag based on your child’s age, weight and length.

Why Parents Love Slumbersac Baby Sleeping Bags

Here's why thousands of families choose Slumbersac:



✔ Designed by Parents – Practical features like detachable sleeves, zip covers, and poppers for a snug adjustable fit

✔Fun, Colourful Designs – Character prints and stylish basics for boys and girls

✔ TOGs and Sizes for Every Stage – For every room temperature, every season, and every age



✔ Safety Tested – Intertek tested to meet European Safety Standards



✔ Easy To Care For - Machine Washable at 60°C & Tumble-Dry Safe



✔ Super Soft Materials – Made from 100% breathable cotton which is ideal for sensitive skin

✔ Excellent Customer Service – We're here to help you choose the best baby sleeping bag

Baby Sleeping Bags: Your Questions Answered

What should my baby wear under the sleeping bag?



This depends on the TOG and room temperature. In warmer weather, a short-sleeved bodysuit may be enough. In cooler conditions, try a long-sleeved sleepsuit or pyjamas. Use our TOG Chart for guidance.

Are baby sleeping bags safe for newborns?



Yes. Our newborn baby sleeping bags are carefully designed to be snug, secure and easy to use from Day One.

Can babies use sleeping bags once they start rolling?



Absolutely. Slumbersc baby sleeping bags and Sleeping Bags with Feet are designed to allow natural movement while keeping your baby securely covered. Just make sure you are using the correct size for comfort and safety.

Shop Baby Sleeping Bags at Slumbersac

Browse our full collection of baby sleeping bags and find the perfect one for your little one. Whether you need a lightweight 0.5 TOG for summer or a cosy 3.5 TOG sleep sack for winter, Slumbersac offers a soft, safe and practical sleep solution for every season.

➡ Shop Baby Sleeping Bags

➡ Explore Our TOG Guide

➡ Find the Right Size For Your Baby