I have had the twin size one since 2006 and I love it! This is a great option if you have a bed that you can't walk around to make (or even if you do). It is expensive but totally worth it IMHO. You can remove the sheets for washing and it has a summer side and a winter side. It looks like they've made them a little larger now so they hang over the edge of the bed for a nicer look.
http://www.campingworld.com/search/index.cfm?Ntt=travasak&N=0&Ntx=mode+matchallpartial&Ntk=primary&Nty=1&Ntpc=1
Anyway, just wanted to share with everyone! If you're looking for an easy solution to making your corner, cabover, camper, or even a walkaround bed, this is it!
Laura