One inclined to stay in bed out of laziness.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "slugabed" in a sentence
"This one jumped in fully formed as I was lying slugabed and wishing for a real spring."
"Harriet has been kicked out of her French lover's Greenwich Village apartment on the fairly reasonable basis that she is an acid-tongued slugabed who does nothing but sit around watching quiz shows and insulting his friends."
"The other books in the first contract did much better not fast enough not to cost me that 30% and the books on the next contract did even better than that, so at this point the only slugabed in the group is #1 on the first contract."