Sabrina Verjee Wainwrights attempt

[JohnK]

Having worked horrible shifts as a junior doctor - Friday 9 am to Monday 5 pm for example - now thankfully illegal - I think you learn what degree of sleep deprivation you can - and cannot - cope with, but I don't think you can train yourself to cope with more. You just become intimately aware of your limits. Some can clearly cope far better than others.

You are so right about the weather - it was absolutely perfect here for several weeks - if only .....

Training for sleep deprivation involves a lot more than just literally depriving yourself of sleep,it is more about sleep accumulation etc.

some reading for you :- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5942705/

I do believe that I can and do train my sleep patterns along with my physical training and yes sleep monsters do exist