I really like the pillow. When I initially used it, I guess my body wasn't used to it, I didn't sleep that well. But now that my body is used to it, I do get better sleep but not all the time. Sometimes I still wake up in the middle of the night with some shoulder ache, but when I fall back asleep and wake up in the morning, the shoulder ache is no longer there. So it's great that I wake up with no shoulder/neck pains anymore but yet my sleep still gets disrupted so I'm giving it 4 stars.