Need help picking the strain for my next grow

I've been growing for a few years but with seeds I was gifted. I have no idea what strain they were but I suspect they were a sativa dominate hybrid and they were certainly not feminized. Now that I've used up those seeds I'm getting ready to order some feminized seeds for next season and I'm trying to decide on what strains to go with.

I'm looking for two things, a strain to help me fall asleep at night and a strain to help me get energized and stay focused during the day. Right now I'm looking at a Indica heavy Northern Lights strain to hopefully help with sleeping, and a Sativa dominate hybrid AK-47 strain for times when I need to get energized. Whatever strain I go with I'll be growing in an outdoor Green House in Zone 5 and I intend to plant around late April, early May.

Would these two strains be good for what I'm looking for or should I go with something different?

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