




** Estimated ship date: April 23rd.
Our thoughtfully designed silk and merino wool Sleep Sack with open legs is perfect for hot weather. It helps to regulate body temperature and provides great ventilation. It is breathable, lightweight, and very soft.
Temperature Regulating:
The inner layer is crafted from a high-quality, eco-friendly blend of 85% Merino Wool and 15% Silk (180 gsm) — thinner and cooler than our 100% Merino Wool sacks (250 gsm).
Silk has a natural cooling effect, dispersing excess heat and keeping your baby feeling fresh.
Merino Wool soothes the skin and enhances sleep quality with its soft, calming texture.
Breathable Outer Shell:
The outer layer is made of 100% Organic Cotton, wrapping the inner layer in a breathable, eco-conscious shell allowing the two fabrics to work together for your child’s ultimate comfort and cosiness!
Smart Design for Growing Babies:
Designed for freedom and long-term use, the open-leg style allows your child to grow with the sleep sack. Once your baby wakes refreshed (not sweaty!), the foot openings let them walk safely and play comfortably.
** Color variation can occur as these sleep sacks are made from natural fiber. This is not the fault of the garment.
• Inner Layer: 85% Merino Wool / 15% Silk, 180 gsm
• Outer Layer: 100% Organic Cotton
• Lengths (shoulder to the end of the cuffs):
– 6–12 months: 29 in (74 cm)
– 12–24 months: 32.5 in (83 cm)
– 2–4 years: 40 in (102 cm)
– 5–6 years: 46 in (117 cm)
• Long fold-down cuffs with fold-over closures to cover little toes
• Suitable for room temperatures: 66°F – 82°F (19°C – 28°C)
• Soft and itch-free — great for children with allergies or eczema
• Machine washable (gentle/wool cycle, cold water)
• Designed & tested in the USA
• Individually sewn in a small, family-owned factory in Slovakia, EU
• Made from eco-friendly, GOTS-certified fabric
• Meets US Children's Sleepwear Safety Regulations
SLEEP SACKS
Sleep sacks are generous in size, we do not recommend sizing up.
age | length of sleep sack* | height of child | weight of child |
6-12 months | 29" (74 cm) | 24 - 29 in (61 - 73.7 cm) |
11 - 18 lbs (5 - 8.2 kg) |
1-2 years | 32.5" (83 cm) | 28 - 33 in (71 - 84 cm) |
17 - 27 lbs (7.7 -12.3 kg) |
2-4 years | 40" (102 cm) | 32 - 40 in (81.3 - 101.6 cm) |
26 - 44 lbs (11.8 - 18 kg) |
5-6 years | 46" (117 cm) |
39 - 45 in (100 - 115 cm) |
33 - 44 lbs (15 -20 kg) |
*from shoulders to the end of cuffs
THERMAL BASE SETS
Thermal base layers are designed to fit snugly (close to the body). We suggest a size up if you like a more loose fit for your child.
>size | T-shirt length | **inside leggings |
3-6 months | 11.5" (29 cm) | 9.8" (25 cm) |
6-12 months | 12.5" (33 cm) | 11" (28 cm) |
1-2 years | 14" (35 cm) | 14" (36 cm) |
3-4 years | 15.75" (40 cm) | 16" (41 cm) |
5-6 years | 17.7" (45 cm) | 19.5" (49 cm) |
We believe in things that last and want to help your products look good for as long as possible.
How to care for your merino wool products?
Merino needs far less washing compared to cotton and synthetic fabrics. Often simply hanging your Merino garment outside on the line for a few hours is enough for it to refresh and renew. This is because it breathes better than any other material and is naturally antibacterial and odor resistant.
Regular airing of your Baby in Merino Products will keep them fresh. When you do wash your garments, always be sure to follow the instructions on the label.
Pilling
As our wool has not been treated with a synthetic coating, it may pill.
If pilling occurs, do not despair. This is a natural process where friction causes the short fibers to migrate to the surface.