Bed Placement variations

Currently, the beds in-game have four legs on the base of the bed and I had the idea that depending on the blocks placed beneath the bed, the legs would appear or disappear, This would be a cool building feature and could improve already existing build designs, such as bunk beds.

For example, if a bed is placed above a stair block, depending on the stair block's angle, the legs on the bed would only appear if in contact with the top of the stair block.

And if no blocks or half blocks are beneath the bed then all four legs disappear.