I must say I haven't tested it with anything other than tea - to see if it is just the bladder in my case!
I cannot normally move (from prone) until I've had a pint of tea (brought to me by dear husband - or made at the side of the bed - kettle on tray - when he is away!) - which of course results in perpetual peeing for the next two hours.
Ditto the others re if I am travelling - I limit myself to one smaller mug and hope most of it clears so first loo stop can be a reasonable 90 mins after leaving! Yes Dorothy - I always allow at least an hour and a half before leaving the house - but that's because it takes me so long to wake up.
Interestingly - whatever is going on with my body nowadays makes me sleep very deeply - so I rarely wake in the night to pee - but the downside is I snore ( well doesn't bother me!) , get very thirsty in the night (presumably due to the latter) but have a really heavy head every morning until I have imbibed the said pint and the caffeine has done its magic
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I do spend the mornings peeing though and yes searching out loos - never passing up an opportunity to visit one if one presents itself while out - and having no shame at dodging behind bushes - or even footpaths in the open with husband keeping guard if there are no bushes (luckily I live in the country)!! Also of course have the handy purple Wizzaway but do prefer the conventional squat rather than risk er wet jeans
Perhaps I should try water one morning and see if I still need to go - but then how would I get going?!
Hurdity x