“I am moving into an apartment with my SO in a few months. We would like a queen sized mattress with no box spring. We want a beige frame with stitching, large headboard, and not too low to the ground. Trying to spend less than $800 on these two items combined. Any ideas or guidance would be much appreciated. We’ve been looking on Wayfair and found some decent options but are concerned about the comfort loss from not using a box spring.” – u/Wehwolf
The Nectar Bed Frame with Headboard a good option based on what you described above.
As for the mattress here are some options (in that price range):
Nest Bedding Love & Sleep
Tuft & Needle Nod