Slugabed

Late morning risers tend to get a lot of flak; early birds may even see them as lazy slugabeds. But brain studies show that night owls actually have more staying power. Researchers who tested the alertness of both early birds and night owls at 1.5 hours and 10.5 hours after waking found that, at 10.5 hours, the night owls had greater activity in two brain regions indicative of greater attentiveness.

Slugabed (SLUG-ə-bed)

Someone inclined to stay in bed out of laziness.

[Derived from "sluggard", a habitually lazy or idle person.]

Synonyms

layabout, laggard, lie-abed

Source

Discover Magazine: Night Owls… |   Photo Credit