Soft pillows are generally more comfortable than their medium or firm counterparts.
Because a soft pillow tends to sink in with pressure from the head, they offer the least head support during sleep.
A soft pillow may be beneficial to individuals who tend to sleep on their backs or stomachs, since a soft pillow does not force the head out of alignment, according to Achoo Allergy.
A soft pillow is ideal for those who love to snuggle with their pillows by folding, rolling or scrunching them up.
A soft pillow that was originally purchased firm can be an indicator that the pillow is old and needs to be replaced.