Le Laboratoire du Sommeil

Do Babies Wear Pajamas Under Sleep Sacks?

Not sure if your baby needs pajamas under a sleep sack? Here's how to layer sleepwear for comfort throughout the year.

Best Sleep Sack for 1 Year Old: What Parents Need to Know

One-year-olds sleep differently than newborns. Here's how to choose the best sleep sack for comfort, movement, and better sleep.

Best Sleep Sack for Newborns: What Parents Should Look For

Choosing your baby's first sleep sack can feel overwhelming. This guide explains what to look for and how to find the right fit.

Why TOG Charts Don’t Always Work for Hot Babies

A real parent-style perspective on why TOG charts sometimes fail hot sleepers—and what actually helped improve sleep comfort overnight.

What TOG Sleep Sack Do I Need? (Simple Temperature Guide)

Confused about TOG ratings? This simple chart helps you choose the right sleep sack based on your baby's room temperature.