I have suffered neck issues for years which had me waking up regularly with a stiff neck or muscle spasms. Since using this pillow, the number of days I wake up with a muscle spasm in a month has significantly decreased. I also fall asleep much faster than I did before. Being a hot sleeper as well, I have not woken up in the middle of the night drenched in sweat with my hair being stuck to my neck. This pillow has improved my quality of sleep and life.