What age does my child need to be to fit the Sleep Sacks?

The Jersey Sleep Sack can be used from around 3 months old, or over 6kg. They are not suitable for newborn babies. Please buy the appropriate size for your child’s weight (see our Size Guide for more information).


Why don't the lower TOGs have sleeves on the Sleep Sacks?

Your baby regulates their body temperature through their arms when sleeping. In warmer rooms, your babies arms should remain uncovered to help them stay cool and prevent overheating. In cooler rooms where the temperature is below 66°F, the use of a light sleeve can help your child stay warm during sleep. Therefore, only our 3.5 TOG pouches have a sleeve with a 1.0 TOG rating, suitable for room temperatures of 57°F-69°F.

Does my child need sleeves on their sleep sack to be warm?

No. Only in cooler rooms would we recommend a sleeve on a sleep sack. In rooms 66°F and above, a warm layer underneath your child's sleeveless sleep sack will be enough to keep them warm during sleep. Remember, it is normal for your child's hands to feel cold during sleep. As long as the nape of their neck and chest is warm and dry to touch, they will be comfortable.

Do I use blankets on top of the Sleep Sack?

Our Sleep Sacks are TOG rated meaning they have an insulation grade making them warm enough to use for sleep without loose bedding and are designed to replace blankets. It is recommended by safe sleep guidelines to sleep your child with their face and head uncovered in their crib, free from loose bedding, pillows and toys.

What should my child wear under a Sleep Sack?

This will vary from a diaper (or underwear for toilet-trained toddlers), through to bodywear or a warm Romper (onesie or pajamas) depending on the room temperature. Follow our Room Thermometer and Dressing Guide (included in your packaging) to layer appropriately underneath, according to your room temperature and what TOG pouch you use. ergoPouch's under Rompers are also TOG rated to help make dressing for sleep easy.


How many Sleep Sacks do I need?

We recommend two lighter TOG sleep sacks, and two warmer TOG sleep sacks to see you through day and night sleeping. Having two in each TOG provides one for wear if one is in the wash.

When should I stop using Sleep Sacks?

This is a personal choice. You may find your toddler is ready to transition from a Sleep Sack to a Sleep Suit Sack or Sleep Onesie once they start walking and want more leg freedom in the crib. However, many children continue to wear a Sleep Sack right up until they transition to a big bed with blankets (not before 2 years of age). Once your child is comfortable with blankets, they can stop using their pouch. Our customers tell us this usually happens anytime between 2.5–4 years of age.