This is my second Pillow Bar side sleeper pillow. I’ve had my first one for about 5 years and felt it was time to replace it. What I love about the pillow is the ability to keep my arm at an even level with my shoulder when sleeping. Having my arm elevated when sleeping also helps with acid reflux. The pillow gives you someplace to put your arms, other than under your head, which is uncomfortable. Its density is perfect, not too soft or firm, but yet, very supportive and snuggly.