Do not put an adult pillow, a small decorative pillow, or loose soft bedding in an infant’s sleep area. A product described as soft or breathable is not automatically safe for a baby.

Follow infant guidance, not adult comfort advice

NIH Safe to Sleep describes an infant sleep surface as firm, flat, level, and covered only with a fitted sheet. It advises keeping pillows and other soft objects out of that space.

An adult bed arranged for comfort is not a model for an infant’s sleep environment. Products designed to cushion an adult head should not be repurposed for a baby.

Ask before adapting the sleep space

If your baby seems uncomfortable, or you are worried about their head position or breathing, ask a pediatric healthcare professional. Do not use a pillow, wedge, or positioner to solve a suspected health problem yourself.

Advice for adult pillow height and side sleeping does not apply to infant sleep. For older children, get guidance appropriate to their age and development rather than resizing an adult setup.

Sources & further reading

These resources inform the general health guidance in this note. They do not endorse Siestly or establish a clinical benefit for our pillow.