I always go to bed with a half-frozen bottle of water on the night table, just in case, but seldom need it, and a factor to consider is waking up again later needing to go to the bathroom.

However, last night, for some unknown reason (maybe dinner was saltier than usual) and for the first time in weeks, I woke up with a dire need for a huge gulp of ice-cold water, and there it was.

The moral of the story is, it is better to have it and not need it, than to need it and not have it.