Looking to replace my 30+ year old mattress. It is somewhere in the mid-firm level, and with a 2" memory foam topper it treated me really well up until recently. I like the soft over firm support feeling, as I get lower back pain on softer beds.
For comparison sake I spent a night on a friends Birch mattress, and had some pressure point/firmness issues but mostly slept fine.
I’m 5’11 and 180lbs. Side sleeper.
I’m debating two builds and am hoping for advice given the above information.
Build one. Bottom first layering.
TPM 15.5 Coils
TPM Mini Coils
2" Soft SOL Latex topper.
TPM's Organic Cotton cover.
Build two.
Quantum Edge Bolsa Springs
2" Blended Talalay Medium (#28)
2" Blended Talalay Soft (#19).
APM's bamboo wool 1" cover.
Both should yield a 13" mattress and are very similar priced at the moment, just not sure which is the better option for my needs.
Hello corkscrew.
Thanks for sharing these DIY mattress builds in our Mattress Forum. 
Wow! They’re really different. What kind of mattress are you sleeping on now?
Do you have any particular preference for the “springiness” of a mattress?
I do wonder if, when sleeping on your side, you would sink into those mini coils. They’re not going to hurt per-say, but I personally don’t enjoy feeling the coils (this is why European mattresses and I have a long standing conflict, ha!)
NikkiTMU
Thank you, but I should mention I have yet to build a mattress, so take everything I say with that in mind!
Current mattress is a 33 year old inner coil/quilted top. Not sure of the brand, was a hand me down from a friend. It’s firm-ish but sunken on one side. I’ve had a cheap, 2" memory foam topper on it for the past 8 or so years. At this point I find it very hot, don’t like how much I sink in, and have to scoot to one side of the king bed to not be in the sunken spot.
On the springiness I believe I prefer more, primarily for more adult activities. I really don’t have a frame of reference on the range, but I’d much prefer it be lively then dead feeling.
I’ll be going to a local mattress store in the next few days to try some things before I commit to a build.
At this point however I’m leaning towards the 2nd build with Bolsa springs. Despite the advantages of the TPS springs, they don’t seem to offer edge support on the head/toe areas of the mattress. I’ve asked Matan if they can get it for me, but am still waiting a response. As someone who frequently sits on the end of the bed to get ready, this is a deal breaker.
EDIT - Confirmed with Matan that they don’t sell TPS springs with 4 firm sides to DIY consumers.
Pulled the trigger with an order to APM for the Bolsa coils and both layers of latex. Will assess from there and fine tune before ordering a cover.