Sleep for them, as opposed to you? You shouldn't sleep at all - but I'm sure you know that, post TCR and everything you've done.
The top riders basically don't stop at all, but since it starts at around lunchtime, the way a lot of people (me included) have done it is to ride until dark, have a break to fit lights, don night clothes and eat some proper food, and then another stop in the morning to reverse the process.
If you can get them to and from York, you're perfectly welcome to borrow
these wheels: a Corima Aero front and a FFWD disc rear. Both are clincher, the rear has 10 speed Campag and Shimano freehubs.