Comfort is not an extra
Position, temperature, pressure and communication shape the experience.
Each of these elements can be adjusted.
You can speak at any time
There is no need to wait until the end to mention discomfort.
A brief comment allows an immediate change.
Comfort is made of small details
Pressure, temperature, light, scent, sound and body support all matter.
You do not need to wait for significant discomfort before asking to change one of these elements.