I’m growing mushrooms in my bedroom

For Christmas, my fabulous brother Dave gave me a mushroom farm.

This was the first harvest:

(some of the mushrooms were literally 3 inches across).

The instructions say the farm can continue to produce for 3-5 weeks under ideal growing conditions. Sadly, I watched my farm for several days after harvesting the first crop, and there were no signs of growth. Until 3 days ago. And now there are 7 or so mushrooms in various stages of growth, with more little babies starting to grow!

p.s. in case you're wondering, the mushrooms are edible. and quite good.