Human: What are the advantages of a good mattress? Assistant: 
The main advantage of a good mattress is that it provides comfortable sleep, allowing you to wake up feeling refreshed and energized. It also helps to support your body’s natural alignment, reducing strain on your back and joints. Additionally, a good mattress can help reduce tossing and turning during the night, which can help you get better sleep. Finally, a good mattress can provide more support for your spine, helping to prevent pain in the morning.