sleep away

sleep away

To sleep throughout or during a large portion of a particular period of time, especially when one could have been doing something more fun or productive. A noun or pronoun can be used between "sleep" and "away." No, you can't just sleep away the whole weekend again! I want you out of bed by 10 AM tomorrow, ready to do something outside! I was so rundown from the 'flu that I just slept the whole day away.
See also: away, sleep
Farlex Dictionary of Idioms.

sleep something away

to spend or waste a specific period of time sleeping. You can't sleep the whole day away! Jim slept away his whole vacation.
See also: away, sleep
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • fish or cut bait
  • a Benjamin's portion
  • Benjamin's mess
  • Benjamin's portion
  • portion
  • piss or get off the can
  • piss or get off the pot
References in classic literature
He meant to go to bed and try to sleep away these wretched doubts and questionings.
Sleep away peacefully, and remember that before we go we shall leave you a nice fat chicken all ready for your breakfast in the morning.
He made her promise that she would not sleep away from the house, or be out late in the evening, while he was gone.
Instead, his thoughts ran riot in his brain, driving sleep away. He recalled the words of Thuvia of Ptarth, words that had half assured him that she loved him; for when he had asked her if she loved Kulan Tith, she had answered only that she was promised to him.
And when I doze over that, I beat my head with my knuckles in order to drive sleep away. Somewhere I read of a man who was afraid to sleep.
Sikes, meanwhile, flinging himself on the bed, and composing himself to sleep away the time until the young lady's return.
Do you not observe that these athletes sleep away their lives, and are liable to most dangerous illnesses if they depart, in ever so slight a degree, from their customary regimen?
She threw herself on her bed, with a sullen impulse to sleep away the time.
And now, good-night; go to your rooms, and try to sleep away all recollections of this evening.
But on that night I had fever and she asked me to sleep away from her.
EXPERIENCE: We've got a baby and a toddler, so my partner and I were looking forward to a great night's sleep away from them.
"They are geared entirely to honing quality sleep away from home.
In a new novel, a young woman attempts to sleep away an entire year to get over her existential ennui
Kolanut: 'Chewed to speak to the gods'; drives sleep away and gives energy boost; eaten for clairvoyance (to see a vision or the future)
Ryan was issued with a formal warning over the incident while Roxanne begged to sleep away from the other housemates as she no longer felt safe in the shared bedroom.