mesh by Simcredible Designs. Download "No Mystery Bedroom" on page 4. 
To be able to use the recolors

Take note that I did not recolor the bedcover since only one of the subset shows
 on my SimPe and only the top part gets recolored while the sides remain the same. 
Maybe there's something wrong with the mesh or it only works in higher version SimPE.
So I use original maxis beddings instead. 

Sorry