Yes we are in the 90 hour group with an 18.30 start. Her body clock just seems to shut her down after 2am which is a worry. I'm very interested to know what sleep others had on PBP.
The general approach is to get as little as you can get by with - so replies will reflect this. But you (and/or partner) may need more than the typical respondent.
People vary HUGELY in their sleep dep response - and thus their requirement over 4 nights. [I'm at the ChrisS end of the spectrum, sadly!]
For a rider that really can't get past the 2am witching hour, it's worth:
- practicing an evening start event (to assess the problem),
- practicing grabbing cat-naps etc. 20-40mins can make a massive difference. Night 2 is a different ballgame ...
Some carry cloth sleeping bag liners (or super light bivvy bags), and make sure their luggage easily converts into a pillow