Sienna lodging?

It might be a little late to find rooms this close, but you could try here. Hotel Alma Domus is very conveniently located to the town center. A Rick Steves recommendation. We stayed there in 2013 and it was very clean and nice. It is not too fancy but a nice place to stay. It was a sanctuary when we were there. Don't know if it still is.
http://www.hotelalmadomus.it/inglese/index.php

We stayed twice at the Palazzo Ravizza, which is just outside the walls and had parking--important if you'll be driving.

I concur wholeheartedly with Charlie. If you're okay with simple accommodations, the Alma Domus is a true gem. Try for a view room with balcony. It's about 5 euros per night extra, and definitely worth it. A nice breakfast is included, and the location is a short walk and charming from the Campo through picturesque alleyways.

Borgo Grondaie is wonderful. We've stayed there twice, 2nd time only went to Siena so we could stay there again. Love it. Free parking on site. Google for their website and photos.

We stayed at the Antica Residenza Cicogna in the heart of the old town just a few blocks away from the cathedral and piazza del Campo. Superb hosts, different types of rooms with different decor, Superb breakfast and free tea, coffee, dessert wine and biscotti anytime in the common area.
Highly recommended by us..we have fond memories of the place..

WE have stayed in two places with parking in Siena: Palazzo Ravizza and Athena. Both are within the walls and an easy stroll to the Campo. Neither is cheap but the Athena is much cheaper.

A while ago, but we enjoyed several nights at the Palazzo Bruchi. Reasonably priced, central and convenient location, helpful folks and there were several different choices of rooms/rates. I remember a large courtyard so maybe parking ? We had no car. Safe travels.

Alma Domus if it's available! Anything with a view of the Duomo (including Alma Domus) would be wonderful.

I will echo the recommendation for Alma Domus...the price is great, very clean, it's relatively cheap, and if you request a room with a view it is truly stunning! I'm sending my son to Italy next week and that's where I have him staying in Siena. Make sure to go see the church next door that belongs to the order of nuns who run Alma Domus - there is a shrine to St. Catherine and the relic they have from her is her head. It's something to see!

I simply can't say enough great things about Dr. Louis Locco, the direttore of Hotel Alma Domus. We've worked together on a number of special occasions, and he truly is a local gem. The hotel offers quite a few view-side rooms, which of course are very popular and totally worth the splurge. IMO, the view is unlike most others available in Siena (note the spelling).

The decoration is modest but comfortable. The hotel is immaculately clean. Anna, who runs the breakfast room, is also a special woman, an angel.

The only criticism I have: they don't permit food or drink in the room. With a place this clean, it's understandable. They also need to protect the property from Siena's large pigeon population.

You can get permission to load and unload your car near the hotel's entrance door. The loading area on Via Camporegio is in a ZTL zone. It is fairly easy to reach by car from Strada di Pescaia. Getting inside the hotel with your luggage requires a sloped sidewalk and then some stairs. The hotel has large, modern elevators once inside. Paid parking is about a block away. Free parking is two or three blocks away.

Siena is not flat. Some streets are better than others, but expect a workout if you take the wrong turn.

ttmom12,

Italian cucina is not designed for diabetics, even though one can find plenty of fiber and protein in grocery stores. If traveling with a diabetic, you'll definitely want a room with at least a small refrigerator. Sometimes you only get a mini-bar, which is not always ideal. An apartment is probably a better choice, where you control all food intake by having access to a kitchen.

"walking into a hotel to check in and then finding out they have such a policy"

Any customer with special health-related needs should never wait until the last second to find out what a hotel's in-room policy is. That's bad planning, and in some cases, it's dangerous. The responsible thing to do is make direct inquiries. The Alma Domus room policy is not a secret. They are not trying to dupe customers. It's a very famous and popular hotel with a large percentage of repeat guests. I don't personally know how they would respond to a diabetic's inquiry.

One can never assume a hotel room offers a mini-fridge in all rooms, especially in Europe. There are numerous hotels that offer them only in premium priced rooms. Mini-fridge and air conditioning are just two amenities that require direct inquiry, if you want to be sure your specific room will have them. Daylight and quiet are two other important ones. But if you request quiet, you'll likely not get a room with a view.

I always stay at the Albergo Bernini when in Siena. Some rooms share a bath so you need to request a room with a bath when booking. It is a great location with a terrace with a wonderful view of the duomo. Close to a bus stop and St. Catherine church. Good restaurant on street behind hotel and a wonderful staff.