At the End of the Day (2)

You can take a cat nap beside the fire or doze off on a train .....

which all describe the kind of sleep that can be ..... at a moment's notice.

A more basic expression of this ..... is to have a little shuteye.

Should you wish for a little peace and ..... at the office,

put a ..... outside your door stating: Do not disturb - having 40 winks.

Forty apparently is the ..... allowed for this kind of sleep.

The strange ..... is that few people announce boldly:

Well, I think I'll ..... to sleep now.

More ..... than not as a guest we'll say:

Well, I think if you don't ....., I'll turn in now.