The best side to sleep on depends on your personal preference as well as the support of your mattress and pillow. However, there are some general guidelines to consider:

• Left side: Sleeping on the left side may provide more benefits, particularly for those who are pregnant or experience gastroesophageal reflux disease (GERD). People with these conditions might want to take special care to sleep on their left side. Sleeping on the left side is also recommended for people with heart failure.

• Right side: People with heart conditions might experience discomfort on their left sides and instead prefer to sleep on their right sides. Sleeping on the right side can also help people with heart failure feel less pressure on their heart and stabilize blood pressure and heart rate.

• Back: Sleeping on your back is actually the worst sleeping position, especially if you have sleep apnea. It can cause your tongue and jaw to fall down and crowd your airway, leading to snoring and other health issues.

• Stomach: Sleeping on your stomach is the hardest on your spine and organs, so its best to avoid this position if possible.

Ultimately, the best sleeping position for you depends on your individual needs and preferences. If you experience discomfort or pain, try a different sleeping position and consider speaking with a healthcare professional for personalized advice.