Ideal writing conditions?

This is a list of my own preferences, to remind me that it is impossible to have all my favorite conditions at once. But that doesn’t have to ruin a writing session. If I can only have a few of these I’ll be ok.

~ hot tea
~ cold water
~ clear mind
~ weary adrenaline
~ 8am-12pm
~ 11pm-3am
~ warm bed
~ hard desk
~ lyric-less music
~ people nearby
~ silence
~ purple pens
~ soft pages
~ dull screen
~ beautiful ideas
~ harsh outcomes

Clearly, my writing preferences are a collection of contrasts. What are the things that make your experience productive?

Please leave your thoughts in the comments below.