When I was in recovery after my surgery, I'd go into the bathroom and "double pump" a few hits. That's taking a pull, holding, breathing in again, holding, then exhaling. Less vapor than a MTL rig... And good breathing exercise, too
They do. I've had several of those sleep lab studies. They hook you up to about 20 different wires on your head, arms, and legs; and you have to call the technician to unhook the contraption before you can get out of bed to pee. Plus, there's an ultraviolet camera on the wall directly in front of your bed so the technician can watch your body movements while you sleep.
I had robotic surgery last summer, and was hospitalized for about 3 days. I vaped in bed when alone in my room with the curtains pulled. A couple of nurses or aids saw my vape setup on my over-the-bed table and said they had to inform me that no vaping was allowed in the hospital, but that they wouldn't say anything. They couldn't guarantee that the next person wouldn't call security on me, though.When I was in hospital for two weeks I just continued vaping as I normally do but just not in front of the nurses.
They gave me a few funny looks when they came in and saw a cloud round my bed but never said anything
That was a new one for me. The last time I had a sleep test they used superglue to hold everything together. This time they used this paste which washes out but they use a ton of it. I walked downstairs for a desperately needed vape (it was morning and the hospital had reopened) after they removed the wires and was astounded when I saw myself in the window reflection. I looked like a zombie. Even the homeless guys were avoiding me. To be let back in to the neurology area I did zombie impressions against the glass.not to mention all the gooey glue they use...
We’re they able to remove the robots? Also: try not to sit on robots. They’re pointy.
. 
