Choosing the right mattress is crucial for a good night's sleep and overall health. Different people may have different preferences, but some key aspects to consider when selecting a mattress include: Firmness, Support, Material, Motion Isolation, Temperature Regulation, Trial Period and Warranty and Price. Remember that personal comfort plays a significant role, so it's essential to try out mattresses whenever possible before making a purchase. If buying online, consider the return policy and trial period to ensure you have the opportunity to exchange or return the mattress if it doesn't suit your needs.