The pillows in this Slumberdown Cosy Hugs Medium Support Back Sleeper Pillow 4 Pack feature cozy, soft touch covers and snuggly hollow fiber filling, ensuring the right level of support and comfort for your head and neck. As well as being extremely comfortable, you can also sleep easy knowing that there’s nothing in these pillows that could cause allergic reactions, as they’re naturally hypoallergenic. Having a medium support level, these Cosy Hugs pillows are a great choice for back sleepers, or for those who prefer versatile, mid-depth pillows.