Think of TOG as a rating of warmth. TOG (rhymes with ‘dog’) stands for ‘Thermal Overall Grade’ and is a simple measurement to tell you how thick and warm your baby's sleepwear is. Our lightweight option, 0.2 TOG is ultra thin and breathable, similar to that of a cotton t-shirt. Best for room temps 71*F+. Our 1.0 TOG has a cozy fleece-like lining for added warmth without bulk. Best for room temps 67-75*F. Our 2.5 TOG (for room temps 67-75*F) and 3.5 TOG (for room temps 53-65*F) are filled through a “quilt’ like process with thermal layers of organic cotton inside, and stitched securely in place to provide even, breathable warmth all night long
Size Guide
Sleep Sack (formerly known as the Jersey Sleep Sack)
Our Sleep Sack is a baby and toddler Sleep Sack designed for arms-out sleepers (usually from around 3 months of age). The Jersey Sleep Sack has a slim-fit, stretchy design similar to that of a swaddle and is recommended as baby's 'First Sleep Sack' after the swaddling phase is over. Please use your child's weight to find the most appropriate and safe size for them. A sleep sack should be well fitted around the neck and the armholes to avoid your baby slipping through. It should also be bell shaped in the bottom to allow for easy leg movement. Please do not size up to the next size until your child meets the weight requirement, for safety reasons.
| ergoPouch size |
3-12M |
8-24M |
2-4Y |
| Same as size |
000-1y |
00-2y |
2-4Y |
| Pouch length (cm/inch) |
80cm / 31.5" |
90cm / 35.4" |
105cm / 41.3" |
| Child weight (kg/lb) |
6-10kg / 13 - 22lb |
8-14kg / 18-31lb |
Follow Height Markers |
| Child height (cm/inch) |
62-76cm / 24.4 - 29.9" |
68-92cm / 26.8 - 36.2" |
92-108cm / 36.2 - 42.5" |