if you are sleeping on your back your pillow shouldn’t be so high. it forces your neck and causes problems. if you can sleep without a pillow, on your back then do it. you can put a pillow under your knee joint when on back . it makes your back feel better.
on your side it’s better sleeping with a pillow that supports your head. and you should put a pillow under your waist side to support your spine.
if you are sleeping on your back your pillow shouldn’t be so high. it forces your neck and causes problems. if you can sleep without a pillow, on your back then do it. you can put a pillow under your knee joint when on back . it makes your back feel better.
on your side it’s better sleeping with a pillow that supports your head. and you should put a pillow under your waist side to support your spine.