First DIY Hybrid to replace Casper mattress/Tempurpedic mattress, side sleepers

Mattress Talk Materials, Specifications & Designs
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Hello, I’m looking to build my first DIY mattress. We have a Tempurpedic mattress that is approaching 10 years old and recently got a Casper Hybrid which is an upgrade but my wife still isn’t sleeping well (likely too firm). We went and tested a bunch of mattresses this last weekend and it seems like we both like the feeling of hybrid “plush” or “soft” mattresses the most. Even the mattresses advertised as “medium” were too firm. I liked the Purple 4" the most but the wife wasn’t a fan and definitely not for the price tag.

About us, both mid-30’s:
Me: 6’ 1" 210lbs, side sleeper
Her: 5’2" 110 lbs mix of side and back sleeper. Says number one priority in a mattress is minimizing motion transfer from me

Given the preference for plush feeling mattresses but still having enough support for me- my proposed build is for a king matress. Also don’t know how to go about addressing the motion transfer piece which is very important to my wife

Bottom: Lux-R foam standard mattress 1/2" overtop box spring (is this even necessary?)
Base: 8" Elite Edge Pocket coil
Transition: 2" Dunlop latex 19 ILD
Top: 3" 2.5 lbs Gel swirl memory foam
Cover: sleep like a bear bamboo and cotton cover

Any thoughts?

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Hi brvier.

Welcome to our Mattress Forum. :slight_smile:

Thanks for sharing your DIY proposed build. It looks well researched/thought out.

If instead of purchasing a single slab of latex and memory foam, you purchase the same measurement in split slabs, this will greatly reduce motion transfer. Everything fits in the same encasement, but the foam layers are effectively cut in half. You can also do this with an electric carving knife with a lot of patience and a steady hand!

Not particularly. It’s just a stabilization layer, which some people like to have but isn’t going to make or break your build.

NikkiTMU