Not everyone responds in the same way to various types of mattresses. Everyone's sleep requirements are different so it may very well be that you've tried the best talalay latex mattress and still can't find the comfort that you did with a memory foam mattress you tried in a hotel. The debate between a talalay mattress and memory foam mattresses has been raging for some time now. It's a good comparison because their support systems are very similar. They are both foam like materials but they behave quite differently in response to weight being applied to them. This is where the similarity ends.
Talalay latex describes the type of process that latex goes through in order to get the resulting foam like material. The Talalay process is more rigorous than the Dunlop process because it employs a couple of extra steps to insure that air is distributed evenly throughout for more a more consistent product from one end of the mattress to the other.
Talalay latex mattresses are touted as being more natural than memory foam mattresses because they are made directly from the tree sap of a particular rubber tree in Asia and are therefore biodegradable, hypoallergenic, are naturally resistant to bacteria, mildew, and mold, and typically "breathe" better than viscoelastic memory foam mattresses keeping you cool in Summer and warm in Winter. Memory foam on the other hand is made from petroleum based materials and has a higher toxicity level because of all types of petroleum based compounds that can give off an unpleasant odor when you first unwrap this type of mattress. That being said it's their physical properties that determine the big difference in the way they feel when you sleep on them.
Memory foam because of its density, temperature sensitivity, and other properties has a latency factor when it comes to "bouncing back" after pressure has been applied to it. When you lie on it responds to both the weight and temperature of your body so wherever your body is heaviest will compress the mattress more. So your hips and shoulders will sink more because of the extra weight and extra body heat based on the contact surface area. Contact areas like the small of your back and legs will sink some but to a lesser degree and so will experience more buoyancy relative to your hips and shoulders. This allows for a better spinal alignment because in the case of a back sleeper the small of your back is pushed up into alignment. In the case of a side sleeper your waist is pushed up relative to your hips and shoulders thus maintaining a straight spinal alignment.
This is one of the properties of memory foam that a talalay foam mattress cannot replicate. If you push down on high density, body temperature sensitive memory foam with an open palm you will feel the memory foam push up in the space between your fingers because there is no the pressure/temperature combo between your fingers to react to so this portion between the fingers resists compression. If you do this with a natural talalay latex mattress you will not feel the talalay latex foam pushing up in the same way to fill out the area in between your fingers. It's more like pushing down on some high quality sponge foam. In this way the density and temperature sensitivity of memory foam allows for a more granular response to compression from a human body at rest. Memory foam in essence "goes out of its way" to fill in those gaps where body weight and temperature are less prominent and this is the quality people who experience a memory foam mattress are buying into. As mentioned previously, not everyone is enamoured by this quality of memory foam because everyone is different. Some people do not like that "sunk in" feeling of memory foam where when you change your sleep position at night it takes time for the memory foam to "forget" the old position and slowly conform to the new position. Some people like the instant reaction of latex foam when they change positions and feel just as supported on latex as they do on a visco elastic foam mattress. To each his own but don't think that one night's experience will give you the whole story on which type of mattress is better for you. You will need a substantially longer testing period to determine that. In home trials are great for this reason and many online latex mattress and memory foam mattress retailers will allow you to do this for 30 or 60 days with a small penalty for returning the used mattress. There are many latex mattress dealers on line it just takes a bit of looking around.