I know the daft suggestions, but does anyone have a sensible solution to the problem of the leg which ALWAYS disappears down the gap between the 2 mattresses on a Hobby Siesta 2010 with LH side fixed french bed? Hubby is a reluctant MoHo man so I need to improve his overnight experience...is a mattress topper the answer, some say they are hot, as we wander in Europe during August that is a consideration...are they thick enough to bridge the gap, your advice please, thanks Jules x