





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
Merino wool is a product from nature. It contains lanolin thanks to which the wool is self-cleaning. Light dirt or bad odors can be removed easily by airing the product outside or by “pressing” the garment very carefully. You don’t need to wash your merino garments before using them for the first time.
If you need to wash them, we strongly recommend following the care instructions on the inner care label of your product.
Most of our products can be washed in the wool /delicate cycle of most washing machines. If the care label shows that your product only can be hand washed, please follow the hand washing instructions below:
Wool / delicate cycle:
• Use mild wool detergent or baby shampoo.
• Wool / delicate cycle with max. temperature of 30°C
• Please change the rotations of your washing machine to max. 400-500.
• Shake gently after washing, pull them in shape carefully and place it flat on a laundry rack (never use a tumble dryer).
Hand washing:
• Fill your sink with „cold“ water (about 25-30°C).
• Use mild wool detergent or baby shampoo.
• Put merino garment into the water, press the garment carefully for 2 minutes (do not rub it), and then take it out of the water.
• Rinse it carefully with fresh water at the same temperature (also 25°C–30°C), squeeze it out softly, pull it in shape and place it flat on a laundry rack (never use a tumble dryer).
Recommendation:
Put a towel on your laundry rack, place your wet article flat on the towel and let it dry there.
Wash your products once in a while with lanolin-replenishing soap.
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) |
Wonderful material and my child slept so well in this. Very helpful with information on how to care for it. Ordering more from this shop in the future.
Very good quality, no issue with delivery
My daughter loves this! We keep her feet covered since it still gets chilly at night, but she does not get tangled with the separate leg sections and is she looks very comfortable. Happy to have a wonderful lightweight option for summer.
top quality and great service
This is the best sleeping sack one can buy.
The texture of the material is so fine, so gentle on my little one's skin, it is just great.
My little one is not hot, nor cold, sleeps perfectly.
I am definitely getting the winter version!