Have you tried sleeping in a toilet bowl?
I did it many times...hahahaha! To avoid my boss seeing me sleeping while at work i used to take a nap in a toilet bowl with the same position show in the picture..hehehe
And today same thing i did again...i've been suffering from insomia for how many days so i always feel sleepy at work. Since i don't have much work to do this morning and my boss was busy with his paper works also i stayed at the comfort room for about 30 minutes and sleep. hehehe