The Alppi Sleep Sack is designed with a 1.0 TOG rating, making it lightweight, breathable, and comfortable for year-round sleep in moderate room temperatures.

TOG (Thermal Overall Grade) is a warmth rating system that measures how well a fabric retains heat. It helps parents choose the right sleepwear based on the temperature of their nursery.

As a general guide:

• Lower TOG = lighter & cooler for warmer weather
• Higher TOG = warmer & cozier for cooler weather

Our 1.0 TOG Sleep Sack is best suited for nursery temperatures around:

• 69–73°F
• 21–23°C

Designed to help keep your little one cozy without overheating, while staying breathable and comfortable through the night.

Our sleep sack is crafted from:

• 95% Premium Bamboo Viscose
• 5% Spandex
• 100% Polyester Filling

This blend creates an ultra-soft, breathable, and stretchy fabric that feels gentle against delicate skin.

Yes. The Alppi Sleep Sack is made with hypoallergenic bamboo viscose that is soft, breathable, and gentle for babies with sensitive or eczema-prone skin.

Yes. Bamboo fabric is naturally breathable and moisture-wicking, helping regulate body temperature and reduce overheating during sleep.

Bamboo viscose is:

• Softer and cooler against skin
• More breathable
• Better at wicking moisture
• Faster drying than traditional cotton

It’s designed to keep babies comfortable through the night.

We use premium double YKK zippers for smoother, snag-free operation and easier diaper changes — especially during nighttime wake-ups.

Yes. The dual zipper design allows for quick and convenient diaper changes without fully removing the sleep sack or disturbing your baby too much.

The Alppi Sleep Sack is thoughtfully designed to support safe sleep practices and is made without loose blankets to help provide a safer sleeping environment.

Absolutely. We reinforced high-stress areas with double stitching to help prevent tears, loose seams, and wear from frequent washing and movement.

We recommend:

• Machine wash cold
• Hang to dry
• Avoid bleach

This helps preserve softness and durability over time.

Our bamboo fabric is pre-washed and designed to minimize shrinkage when care instructions are followed properly.

A 1.0 TOG sleep sack is generally suitable for moderate room temperatures and works well for most indoor sleeping environments year-round.

The Alppi Sleep Sack comes in multiple sizes designed to grow with your little one. Please refer to our size guide for the best fit.

If your baby falls between two sizes due to overlapping weight ranges or age recommendations, we recommend choosing the smaller size for a safer and more secure fit.

This is especially important because the neckline fit plays a key role in safe sleep. A sleep sack that is too loose around the neck may ride up and potentially cover your baby’s nose or mouth during sleep.

For the best fit, we recommend prioritizing:

1. Weight first
2. Body fit around the neck and chest
3. Age as a general guideline onlyDesigned for Comfort. Sized for Safety.

The Alppi Sleep Sack is designed primarily for safe sleep and comfort during naps and bedtime. For safety, we recommend removing it once your child is actively walking around.