bedhead  
noun [ C ] uk/ˈbed.hed/ us/ˈbed.hed/
  (PART OF BED)      
  UK床头,床头板 
a vertical board at the end of a bed behind your head
  He leant against the bedhead reading his book. 他靠在床头看书。 
 Synonym: headboard
  (HAIR)      
 informal(因为刚起床)一头乱发 
hair that is untidy because you have just got out of bed
  She emerged from the house the next morning with a serious bedhead. 第二天早上,她走出屋子,头发乱糟糟的。