This slat system makes for a dreadful sleep. The bed seems as if it is tilted and uneven. We will need to screwa piece of plywood to lay mattress on top of to try and make useful. Yes we tried bed with 10 inch “endy” bed and 12inch kingswood. As well, the headboard is not as shown . Photos show 3rows of squares . It only has 2 leaving not enough headboard showing with bed made,pillows. Not happy but stuck with it as it is too much of a return hassle being so big and heavy. Lesson learned..would not buy this type bed ever again..epic fail...