The cover makes a big difference in comfort and feel. Very soft and smooth Mattress Includes Bamboo smooth top Cover ---very soft and breathable 7" Foam Rails & Liner- Surround the bladder on all sides along with the safety liner Heating System -Adjustable and easy to use control Fill Kit Adapters-Helps hooking a hose to your faucet and to the mattress 4oz conditioner- Normally you add one 4oz bottle every 6 month This mattress needs to be placed on a strong flat surface. This mattress does not include any base. If you have any questions feel free to contact us Start sleeping more comfortable on a waterbed sooner than later.