Hi schmac,
In a word to different degrees for different firmness levels of latex …yes.
Latex is very “point elastic” which means it will compress in the area of weight without being affected or “resisted” by the area around it nearly as much as other materials. They are not meant for sitting on … only for sleeping or lying on … and its point elasticity is part of why latex can be so supportive for the spinal curves and pressure relieving at the same time. For some people this could be an issue although for most it’s not.
latex/innerspring hybrids can also make a great choice and the innersprings would not compress as much as most latex. I would also keep in mind that the firmness of the latex core layer and your own weight will also make a difference in how far you sink in. Some of the other options in the DC area are listed in post #2 here although the Washington DC area is not the best area for mattress selection and value. There are certainly lots of choices there for testing though to give you a good sense of various combinations.
Phoenix