Here’s a nice way to upgrade your mattress! Right now you can get this Spring & Memory Foam Mattress, on sale from Home Depot for half off!! That’s a great deal on such a big brand, and includes free shipping in sizes twin-king. This mattress has both foam and innersprings, which is great for lots of support without being hard or being able to feel the coils. We have a similar mattress, and shipping/setup is super easy, Check it out here:
12 in. Twin Spring & Memory Foam Hybrid Mattress – Medium Firm