Elevating a single wooden bed of the floor a foot or two?

hi i am hoping to raise my single wooden bed up the floor a foot or two if it is possible. i am soon to be getting a bigger reptile vivarium and hoping to place is underneath will it be possible just to lay the matress ontop of the vivarium and sleep or not? the viviarium is 6f by 3f by 3f....or what will i need to raise my bed a foot or two up so its higher then the viviarium.......thanks sorry for long question................................… sorry my bed is something like this http://www.argos.co.uk/static/Product/partNumber/6631758/c_1/1|category_root|Furniture|12107022/c_2/2|cat_12107022|Beds|12107243/c_3/3|cat_12107243|Single+wooden+beds|12107250.htm