A handmade crochet sleep sack is not automatically suitable for infant sleep. Its name, yarn softness or resemblance to a commercial product cannot establish that suitability.
Start with established sleep guidance
Read the authoritative sources linked in our baby crochet safety guide. This page does not provide a DIY infant sleepwear pattern or claim that a crochet cocoon, hood or wearable blanket has been tested for sleeping.
Do not transfer assumptions between products
Instructions for a decorative cocoon or photography accessory should not be used as evidence for overnight sleep. Adding a hood, changing the yarn or modifying the opening changes the construction again. A generic blog cannot assess the finished item in use.
Choose a gift with a clearer purpose
If your goal is a thoughtful handmade baby present, consider a small washcloth set or an appropriately sized accessory from a complete designer pattern. A blanket can be a keepsake for appropriate awake use, but it should not be presented as loose infant sleep bedding.
Browse beginner gift projects and read the intended-use notes before deciding what to make.
Discuss sleepwear with the caregiver
Let the caregiver choose sleepwear using current professional guidance and the actual product’s instructions. The fact that a handmade project looks cosy is not a reason to substitute it for that decision.