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Lunio Journal

Sleep advice that actually works — the Lunio blog

Practical, science-backed advice for children aged 6 months to 8 years. Read in 10 minutes, try tonight.

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2 articles

A caterpillar and a chrysalis resting on the same branch, soft natural light, suggesting a change already under way.
SLEEP REGRESSION

What is actually happening in the 4 month sleep change?

The 4 month sleep change isn't a phase that ends on its own — it's a permanent maturation of your baby's sleep cycles. Here's exactly what changes, and why now is a good time to build independent settling.

7 min read
A wall calendar with several weeks visible, most days unmarked, a faint pencil circle around a few recent days.
SLEEP TRAINING

Do I need to sleep train, or will my baby grow out of it?

Some sleep problems really are temporary phases. Others are learned patterns that repeat every night because they're working for your baby. Here's how to tell the difference before you decide what to do.

7 min read