@trails good choice on the Deuter backpack! I use Deuter and absolutely love the brand!
For the sleeping bag I use REI Co-op's Joule 21 sleeping bag. It's a bit expensive, but totally worth it and has done wonders on both warm and cold nights! Here is a link to the men's version of the bag (the Igneo 17).
For a tent, I would recommend REI's Half Dome or Quarter Dome series. If you think there's a chance you will backpack with another person (with whom you don't need to social distance), or you foresee wanting to have extra space/gear storage inside the tent itself, I would invest in a 2-person tent. Otherwise, I'd suggest a 1-person tent. Personally, I alternate between my ALPS Mountaineering Lynx 1-person (also a tent I highly recommend) and my REI Half Dome 2-person tent.