Baby sleep sack from Zara?

Zara's baby sleep sacks are generally good quality and meet safety standards. Their cotton fabrics are breathable, zippers are usually two-way and chin-protective. If TOG values (heat levels) are listed on the label, you can choose seasonally appropriately.

But regardless of brand, when choosing a sleep sack, watch for:

• Correct size (fits baby's height, opening too large for head to pass through)
• TOG value: summer 0.5-1, winter 2.5, spring/fall 1-1.5
• If baby rolls over, sleeved or roll-safe models
• Natural breathable fill over synthetic

For price-to-performance, Zara can be a good choice, but there's no single 'best' brand — what matters is choosing the right size for your baby's room temperature, sleep habits and season.