If you have a sofa bed in your office or extra room, you havethe option of making it into a comfortable guest bed. If you havespent a night on the sofa bed, though, you may have woken up withan aching back or a stiff neck: pull-out sofas are usually notterribly comfortable. Help your guests feel at home by taking a fewsimple steps to making your sofa bed a comfortable and soft placeto sleep.When you pull out the bed to prepare it for your guest, removethe mattress. Place a full- or queen-sized bunkie board, availableat most furniture stores that sell beds and mattresses, on top ofthe springs and bar. This will add support and will not allow thesupport bars to dig into your guest’s back. If you can not find ordo not wish to purchase a bunkie board, measure the space and cut asheet of plywoo