The ergoPouch Organic Long Sleeved Sleep Arm Warmers in Oatmeal is designed to be used over the top of any arms-out sleeping Swaddle, Sleeping Bag, Sleep Suit or Sleep Onesie.
If your baby is wearing a sleeveless sleeping bag, you may notice their arms feeling cool during the coldest hours of the night. If this is causing them to wake up, a little more warmth on the arms may be needed.
The sleeves on the Arm Warmers are rated 1.0 TOG making them suitable as a mid-weight layer, and the fold-over cuffs will help keep hands warm too.