Naturehike - Vik Series

If you are below 175, maybe 180cm tall, CloudUp will surely be OK. If you can manage condensation (sleeping alone in well vented tented should make it bearable, if it's raining out there you may need to use your buff or small microfiber cloth piece to wipe the inside part of the fly), you can look at the NH Taga/Tagar 1 tent. It will be semi-freestanding like CloudUp, but due to no separate inner mesh (only side walls have inner mesh glued to them) it should take less space and be lighter. If you want it truly freestanding, then there are Mongar / Star River tents, but both are 2P. (At least older versions of) NH Vik had issues with bad top vents placement that sometimes let the rain in. Whichever you choose, take the variant with silnylon fly (which chinese mark by adding denier number to the name - for example \`20D\`). Poliester one (typically labelled them as \`210T\`) will be heavier and bulkier when rolled up, but cheaper. If you want it even smaller and still cheap, I'd look at \`Flame's Creed 3x3m 15D\` tarp combined with Lixada's mesh inner. Very light, dirt cheap and definitely OK for shorter person. You can look up the ways to set it all up using your bike, when there are no trees, fences or other poles around (or grab foldable carbon fiber trekking poles, which are much cheaper than dedicated tarptent poles - 130cm one weighs 125g and costs 20-22$).

Checkout r/ultralight. They have the best recommendations for lightweight tents. Duston 2 is great if you want a trekking pole tent. A cheaper option is the Paria Aches which I personally like a lot. For free standing i have enjoyed my naturehike vik but it does condensate a good amount so a double wall might work better for you like the Paria Zion 2 person.

Will depend exactly what you're comfortable with, and how much gear you have, but the Naturehike 2 person tents are pretty much big enough to actually fit two people. Vestibules are substantial. I mention this because I belive they are in stock online (in the UK at least). The Star River is probably better for cold than the Mongar. Very similar design but less mesh in the inner.

Was gifted a 2 person Naturehike easy enough to set up. 1 rain and a couple sprinkles and dry inside. Look for a tent with pole clips for easy assembly. Pushing rods through sleeves can try my patience. Waterproofing a tent is a simple process. Don't let that determine a purchase. Rain fly should cover the entire tent. It also helps keep the warmth in when needed.