Hi lopf,
The tutorial post includes this link to a list of the members here that sell mattresses online and several of them sell component latex mattresses that are very similar to Savvy Rest with three 3" latex layers that give you a choice for the type (Talalay or Dunlop) and firmness of each layer. They also have layer exchange policies and/or return policies that are similar or better than Savvy Rest and they also have lower prices.
I took a quick look and one of them has white glove delivery as an option however some of them may be able to provide this on request but you would need to call and ask them. These types of mattresses are shipped in several boxes that contain the individual layers and the cover and for the most part they are relatively easy to put together with two people.
The ones that make a similar mattress with similar options are …
https://www.foamsweetfoam.com/ (now http://www.urbangreenmattress.com/)
http://www.spindlemattress.com/ (100% natural continuous pour Dunlop only)
https://www.cozypure.com/ (has white glove delivery available and the cover is two sided)
There are several others that also offer component latex mattresses as well that have different designs or options that may also work well for you so you could check with these as well. The first two list white glove delivery as an option on their site. They are …
http://www.astrabeds.com/ is not a member here but they offer component latex mattresses with optional white glove delivery including a 3x3 layer organic Dunlop mattress.
http://www.plushbeds.com/ is also not a member here but they also offer component latex mattresses (but not with 3 x 3" layers) with optional white glove delivery
Phoenix