It's not laziness that drives me to bed for 14 hours. I simply don't get up.
Ah, so that would mean it is simple inertia?
Ladies and gentlemen, I present to you...The Immovable Mass.
(Oh, and by the way, one of the things I accomplilshed this summer was to tie dye the sheets upon which she so peacefully slumbers. Hopefully by the end of the week the ghastly wallpaper in her room will be completely removed.)