Lambing season means little sleep

This is the time of the year when we expect our first lambs of the season. While we've certainly had a mild winter this year, Murphy's law will surely prevail and we'll probably get a cold snap as our first lambs are born.
We've prepared the sheep barn, with lots of straw and the individual sheep pens are ready. Sherry kept track of when the ewes were bred by the ram last fall, so we know roughly when the first ones are due. We check them at least every three hours to make sure there are no birthing difficulties.
The ewes have their lambs in the open area of the barn and then we move them into the individual pens so that the mother can take care of her lambs and we can take care of both. This year we've purchased a special vacuum pump milker that should help us a lot in the event that lambs have difficulty sucking.
It's essential that a lamb get some of her mother's milk within the first few hours, so we may milk the ewe and tube feed the lamb right away just to make sure.
It's not fun getting up every few hours in the middle of the night to check the sheep when it's cold and the winds are howling, but we don't want to lose any lambs.
Besides, sleep is overrated, right?