master said he was planning to tie me to the bed a whole day next week (well not only beign tied all that time... ), now his bed got no headboard nor footboard and we are wondering how best to get tying points at all four corners of the matrasse, can't put hooks in the wall as Mr Guy did. i had seen something on a webpage a couple of years back where they used ropes arund the matress to create those four points but am not sure anymore how that worked to prevent it from slipping or moving. any ideas?