Matan from Texas coils recommends a 15.5G coil, whereas EngineeredSleep believes their 14.75G coil will work fine for me, but are willing to swap it if I really want to. 5’8 155lbs side sleeper
When choosing between a 15.5G coil from TPS and a 14.75G coil from EngineeredSleep, it’s important to consider more than just the gauge of the coils. The overall construction and design of the coils, including how they’re made, placed, and nested, as well as the height and hardness treatments, all affect the final feel and support. For example, the number of turns in the coil, whether they are hardened once or twice, and the transition and comfort layers placed on top will also play a significant role.
In general, thicker coils (such as the 14.75G) tend to offer more support and durability because they are designed to be firmer, while thinner coils (like the 15.5G) might provide a softer, more conforming feel. However, this can vary depending on the specific design and construction of the coils.
Both EngineeredSleep and TPS produce high-quality springs, so the choice between the 15.5G and 14.75G should be based on your preference for firmness and support. For a side sleeper weighing 155 lbs, the 14.75G coil from EngineeredSleep is likely to offer better support and alignment, whereas the 15.5G coil from TPS might provide a softer initial feel but may not offer the same type of support. Neither is right or wrong, they just may feel a little different, and in some cases, depending on the comfort layer, you may not notice anything at all, although side sleepers may be a bit more sensitive.
EngineeredSleep’s offer to swap the coil is a good option if you’re uncertain.
Ultimately, the best choice will depend on the complete construction of the mattress and your personal comfort preferences.
I know this does not help you separate the difference and foster a decision, but a specific answer may not prevail here.