How to get my phals to rebloom?

[Priya_H]

I have 4 dormant orchids and while they're growing roots and leaves...they are showing no signs of any spikes! I'm also worried about the leaves of 2 of them. One is a large phal, the other is a mini. Roots are all healthy, 2 new leaves on each...but the other leaves are becoming limp and leathery. Is this normal? They are both mounted on corks (tied with cotton kitchen twine). The rest are potted in sphagnum moss (loosely) or in bark.

This is the care they're all getting: Mounted ones get water everyday (because they get quite dry if I don't water them at least every other day), the others get water as needed. Then all get a good draining.

They spend a few hours on the windowsill (half-window, open for fresh air, Southern exposure. All my windows are like that)

Rest of the time they sit on top of a bookshelf under the potlights in the living room. It's a bright room (naturally lit even without lights) and there's a fan running pretty much 24 hrs.

At night, most of the time I put them back on the windowsill...in hopes that that will encourage them to spike. But it is getting quite cold at night now, so not sure if it's OK.

Am I moving them around too much? What's causing the leaf issues and spike delay?