When should babies stop wearing sleep sacks?
Unlike a loose blanket, a sleep sack/sleep bag is like a “crib blanket” and will keep your child's temperature regulated while keeping their sleep space safe. The AAP's recommendation is that nothing is in the crib with your baby, just a tight fitted sheet until they're 12+ months.
Are sleep sacks warm?
Safe, Sound Sleep.
The Halo SleepSack wearable blanket replaces loose blankets in the crib that can cover your baby's face and interfere with breathing. In addition to sleeping safer, it helps babies sleep better, too. It's a warm cuddly blanket they can't kick off; ensuring baby sleeps soundly throughout the night.