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.

Walker Sleep Sack vs Regular Sleep Sack: What's the Difference?

Not sure whether your child needs a walker sleep sack or a regular sleep sack? Here's how to choose the right option for every stage.

0.5 TOG vs 1.0 TOG Sleep Sack: Which Is Better for Summer?

Not sure whether to use a 0.5 TOG or 1.0 TOG sleep sack this summer? Here's a simple guide for hot sleepers, warm-weather families, and parents trying to improve overnight sleep.