Winter rest? No rest?

[angel_uk]

Hello.
I apologise in advance if this has been asked before.

I got my Dendrobium nobile in September for my bday.

It only had one flower left and one main cain that was having leaves.

I am new to the plant and did a bit of research and wanted to follow advice on winter care.

I didn’t fertilise as it was already October and just watered but then noticed it got a new growth of cain and leaves from
the bottom of the soil and now a new growth on the existing cain.

It sits on my windowsill and we only started using heating once in the morning but the radiator is under that window sill.

I was thinking of moving it into colder part of the house like my pantry but not I am unsure of what to do with it still being active and growing.

Is it not going to have a rest period?

The temperature In the room varies from 17 c to 20 c during day and at night it can get to 16 c.

If anyone could advise on what’s the best care for my environment please I would really appreciate.
I could post some photos for reference too.

Thank you