A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
44% of kids watch television before they go to sleep.
106
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
You forget 90% of your dreams.
256
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Termites work 24 hours per day and they do not sleep.
57