Honeybees never sleep.
276
People who sleep late have more mental stamina and can outperform early risers.
33
44% of kids watch television before they go to sleep.
106
The average cat sleeps about 2/3 of the day.
203
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12