If you want extra storage, a raised bed is the way to go. But finding the right organizer to place your mattress on top is another story. Here, nine sturdy IKEA kitchen cabinets with doors hide personal items. See more at Oh Yes »
IKEA Hackers: Melltorp to Sewing Desk (full blog post here: http://badskirt.blogspot.com.au/2012/07/dracula-hands.html). Create a cut-out lowered desk section to sit your sewing machine inside + as a result a nice big flat-bed surface to sew on.