睡眠不足

睡 = 垂 + 目 : Sheldon Shrimp (shu) is sleeping (睡) on top of a weeping willow (垂) in the Eiffel Tower's bathroom (ei4). His sleep (睡) is guarded by the eye of providence (目) which is hovering next to the tree (睡).

眠 = 民 + 目 : The eye of providence (目) is going to sleep (眠) in the anthill's kitchen (an2). Marilyn Monroe (mi) tucks it into a copy of the declaration of independence (民).

不 = 丆 + 卜 : Bruno Bear (bu) is setting up a wind wheel (丆) with a voodoo staff (卜) in the space station's bathroom (Ø4). He also puts a "forbidden" sign (mnemonic symbol for 不) on it, to make clear that it may not (不) be stopped.

足 = 龰 + 口 : Mnemonic symbol: a football. Zapatista Zebra (zu) wants to pimp his football (足) in the space station's kitchen (Ø2). He thinks that a few more vitamins wouldn't hurt, so he extracts the vitamins from a mandarin (口) with a syringe (龰) to inject them into his football.