Spent for whole bed over 13,000. Mattress lasted less than 30 days. Sheets are super expensive and a pain if u try to buy twin xl cause then u have to buy king flat and pillow cases. Just found someone who sell cotton and not stupid microfiber as that in Az is worse thing to have especially if u have pets. I couldn't believe when I removed cover to see just four pieces of foam. I now am looking to buy another with inner springs and support. Having knee and hip isssues and husband back we thought this would help. As for the gap between that's the least except for my lil chihuahua. But we fixed that. I hate with a passion this bed worse product ever