I had a couple of weeks on a liveaboard in the RS over Christmas and New Year (hey, you have to make the most of gardening leave when it's available!). Was doing three to four dives a day (couldn't do nightdives as we were round the Brothers etc) ... it was a standing joke with everyone else on board in between dives -
'Where's Helen?'
'Asleep... again'
The need for sleep might also have something to do with a 6.30 wake up call for the first dive. I'd get up for it - but with notoriously bad grace and to much mockery from everyone else. The one day I thought 'sack this, I hate mornings' I had six people pulling me out of bed (kicking and screaming)... and was then marched up on deck where two of the Welsh blokes shaped up to throw me over the side, until I managed to convey my unhappiness with that arrangement
I did the dive. It seemed like the lesser of two evils
Can't imagine doing eight a day - I'd be out for the count.
H