Dell Venue 10 Pro 5056

Im In the process of buying a Dell Venue 10 Pro 5056 tablet but had a question.  I use to have a Dell Venue 11 7140 and it never would go into sleep mode where it wouldn't completely drain the battery if left unplugged for 8-10 hours.  Will this be the same issue with the Dell Venue 10 Pro 5056 or will I be able to leave it unplugged throughout the night and maybe only lose 1 or 2 percent battery drain?  Thanks.