If you’re primarily a back sleeper or require more support while sleeping then Casper Pillow is the better option. If you are a side-sleeper or if you prefer a soft feel then go with Purple Pillow.

These two pillows are very different and it will depend on personal preference. Casper's pillow is more like a traditional down or down alternative, while the signature Purple has the polymer core and is more pressure-relieving and supportive.