Consider your sleeping position. Your sleeping position can affect the amount of pressure placed on your lower back. If you sleep on your side, a softer mattress can help reduce pressure points, while back or stomach sleepers may need a firmer mattress to maintain proper spinal alignment.
Look for a supportive mattress. A mattress that provides support and prevents sagging can help maintain proper spinal alignment and relieve pressure on your lower back. Look for a mattress with a firmness level that suits your sleeping position and preferences.