The position that is the healthiest to sleep in is on your side or on your back.
Sleeping on your side or back makes it easier to keep the spine supported and balanced which also relieves pressure on your spine and also enables the muscles to recover and relax.
Sleeping on your back has the maximum health benefits and is good for your spine and in relieving your knee and back pain too.
Sleeping on back can also reduce your back or joint pain.
Also having a pillow that is kept beside your knees can help you keep the curvature of your knee aligned.
The most unhealthy sleep position is the fetal position.
The fetal position refers to the position which involves bowing your head forward, arching the back, bending at the hips, and flexing at the knees, which is particularly unhealthy because of how many parts of the body can be negatively affected.
People with heart failure might experience discomfort on their left side and prefer to sleep on their right side.
Some people that sleep on their front may also benefit from sleeping without a pillow.
It can also aid in maintaining the posture of the neck and spine as you sleep, reducing neck and back pain.
However, not everyone should do it.
Without a pillow, those who sleep on their back or side may experience neck or back pain.