For individuals experiencing sciatic nerve pain, the best sleeping position is typically on their side with a pillow between their knees. This position helps to maintain a neutral spine alignment and reduce pressure on the sciatic nerve. If this is not effective, lying on your back with a pillow underneath the knees can help maintain a proper alignment of the spine and decrease pressure on the sciatic nerve. It is also important to use a supportive mattress and pillow to provide proper support for the spine and promote restful sleep. Consult with a healthcare professional for personalized advice on the best sleeping position for your specific case of sciatic nerve pain.