Baby slumber sacks are like sleeping bags for babies, but it's more of a vest that extends into a soft bag-like bottom where your baby can sleep in comfortably. Slumber sacks usually come with a zipper that covers the full length of the sack, either along the side or down the middle. Also, aside from zippers, some are fastened with poppers and parents use them when their baby is already a few weeks old.

Here are some of the things that you should consider when buying slumber sacks.

1. The Baby's Age


Choosing the right size of slumber sack is very important to ensure a parent's peace of mind and for the baby to get a good night's sleep or an afternoon nap. As a rule of thumb, don't let the length of the slumber sack confuse you-- although it may look like there's a few meters excess material, your baby would love a slumber sack that has enough kicking room.

There are plenty of manufacturers producing different sizes of slumber sacks based on age ranges-- say, 6-12 months or 6-18 months.


2. Decide What Tog You Need

For those who are not familiar with the term, tog is the measure of thermal resistance. It's how thick and how warm the material can be-- that's why it's one of the factors to consider when choosing slumber sacks. The higher the number, the warmer the slumber sack is. Usually, slumber sacks are available in three tog ratings, namely:

- 0.5 tog: Perfect for warmer days and holidays in tropical places.
- 1 tog: Perfect for daytime naps.
- 2.5 tog: For all-year-round use except summer.

It's also important to note that there are tog-less slumber sacks that can be used all-year-round. These are usually made from Merino wool. Merino wool has the ability of trapping and releasing moisture and heat to keep the baby warm whenever the weather is cool, and it cools down whenever the weather is warm.

3. Would It Be Used in a Car or Buggy?

Using a slumber sack in a buggy or car is an option if the sack has holes or loops that allow it to be harnessed. Back and front two-way zips give the privilege of feeding the 5-point harness through the bag without disturbing a sleeping baby.

This feature is very helpful, especially when you have to make a quick transition from cot to car-- like traveling early morning or during the holidays. It's also handy for those who rely on a car ride or have a habit of pushing in the buggy to soothe their babies.

4. Choose a Fabric That's Easy to Wash and Dry

See to it that the fabric of the slumber sack is easy to wash and dry. We cannot prevent nighttime diaper accidents, and that's why it's very important that a quick cleanup is possible. If the slumber sack is intended to be worn alone, then check if there are any zippers or snaps that could irritate the baby's skin. Stay away from this.

Lastly, make sure that the slumber sack fits well -- you don't want your baby accidentally slipping down inside the bag, because this might cause some injuries. Make sure that it properly fits around the arms and neck.