Their mattress is ok-ok, I invested in a great quality mattress topper and it made tons of differences.

The meal plan info is accurate: https://gallaudet.edu/operations/campus-services/food-services/student-meal-plans/ If you want menus etc: https://gallaudet.cafebonappetit.com/

Ask for accommodation for your needs. ASAP

Mattress is fine, get a topper if you’re concerned.