Nanit Bodysuit
| Size/Age | Weight |
| NB-0M | 3 - 4 kgs |
| 0-3M | 4 - 5.5 kgs |
| 3-6M | 5.5 - 7.7 kgs |
| 6-9M | 7.7 - 9.5 kgs |
| 9-12M | 9.5 - 11 kgs |
| 12-18M | 11 - 12.7 kgs |
| 18-24M | 12.7 - 13.6 kgs |
Nanit Breathing Band
| Size/Age | Weight | Min Chest Circumference | Max Chest Circumference |
| 0-3M | 3 - 5.5 kgs | 28.5 cm | 50 cm |
| 3-12M | 5.5 - 11 kgs | 40.5 cm | 58 cm |
| 12-24M | 11- 13.6 kgs | 49.5 cm | 68.5 cm |
Nanit Pajamas
| Size/Age | Weight | Length |
| NB - 0M | 3 - 4 kgs | 45 - 54.5 cm |
| 0-3M | 4 - 5.5 kgs | 54.5 - 61 cm |
| 3-6M | 5.5 - 7.7 kgs | 61 - 67 cm |
| 6-9M | 7.7 - 9.5 kgs | 67 - 72 cm |
| 9-12M | 9.5 - 11 kgs | 72 - 77.5 cm |
| 12-18M | 11 - 12.7 kgs | 77.5 - 82.5 cm |
| 18-24M | 12.7 - 13.6 kgs | 82.5 - 86cm |
Nanit Pajamas - 2-Piece
| Size/Age | Weight | Length |
| 2T | 13 -14 kgs | 90 - 92.7 cm |
| 3T | 14 - 15 kgs | 92.7 - 99 cm |
| 4T | 15 -17 kgs | 99 - 105 cm |
| 5T | 17 kgs | 105 - 111 cm |
Nanit Sleeping Bag
| Size/Ag | Weight | Length |
| 3-6M | 5.5 - 8 kgs | 58 - 66 cm |
| 6-12M | 8 - 10 kgs | 66 - 76 cm |
| 12-18M | 10 - 12 kgs | 76 - 89 cm |
| 18-24M | 12 -16 kgs | 89 - 101.5 cm |
Nanit Swaddle
| Size/Age | Weight |
| NB | 2.2 - 3.6 kgs |
| 0-3M | 3 - 5.4 kgs |
| 3-6M | 6.3 - 8 kgs |