Great question. My ideal book companions:
Decaf cappuccino with latte art and chocolate sprinkles.
Quilted throw (that looks weathered but smells of fresh lemons).
Pooch (preferably a Weimaraner).
Natural indirect light.
Misty sea breeze (not too misty where it causes mold to grow).
Waves crashing outside (but not tsunami loud).
Queen size sleigh bed with 3 pillows.
Pilot V5 Hi-Tecpoint 0.5 pen (no other pen will do).
Vase filled with white calla lilies and David Austin Black Beauty roses.