Why not CBD instead? For me THC is very energetic in nature and would make my mind race violently. My biology must be very different to yours if you're able to take THC before sleep.
The strain does not make a huge difference to me, Indica does not much make of difference, I still get somewhat energized by it. It is quite unusual that I get the opposite effect from other people but I know I'm not the only one.
The effects you are describing are those of sativa strains, know for the 'head high' and creativity boost.
For example, I always had the same understanding of indica as you described, and I would solely buy indica gummies. They would give me a pretty "heavy" high, full body but mostly in my head, and I would wake up lethargic and often with a headache. I switched to a "sativa" of the same brand, and got a very nice full body high, but much lighter, very relaxing, and would sleep very well and wake up feeling refreshed.
Anyway, all that to say, different strains have different effects, and often the description from the dispensary can give you a good idea of the effects they are intended to have.
Can you get an 'indica oil' then? Pure THC oil is different than plant matter.
It’s marketing, nothing more.