
Brooklyn Bedding
Signature Hybrid
Durable, comfortable, adjustable firmness; excellent value.

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We just bought the Leesa natural hybrid. Only a week in. We like it. Firmer than I was expecting. Good bounce but don’t feel the other person move. Haven’t noticed it sleeping hot.
Hey, happy to offer a few suggestions. First off, a good amount of modern mattresses (especially online mattresses) don't require a box spring. And, here are a few medium-firm mattresses that, in my experience, sleep cool and don't require a box spring. I'm not sure what your budget is, but I have had good experiences with the Saatva mattresses. The Saatva Classic Luxury Firm model is almost exactly medium-firm and really breathable, too. You could also look at one of the Helix mattresses. The Helix Midnight, in particular, is a good medium-firm option. If you're also worried about that lumbar support, you can add zoning to the mattress for extra support in that area. Plus, as a hot sleeper, latex is always a good choice. It's naturally more breathable than standard memory foam. For a medium-firm option, I would check out the Leesa Natural or the Nolah Natural.
Highly recommend the Leesa hybrid. We’ve had two guests to our house and both have bought that mattress for their own homes. We’ve had it for 3+ years now and it feels brand new. Worth every penny.
To be fair, showroom testing can kinda suck depending on how long the beds have been sitting out there and how old/worn out they are. That said, if you wanna narrow it down and take advantage of those sweet sleep trials at home, the new DreamCloud Classic and Premier hybrids are really good for side sleepers (especially if you have hip pain). They also aren't prone to overheating in my experience. Tempur-Pedic and Leesa are good too, but I'd say their foam models are infinitely better than their hybrids. If you're willing to give foam a try, it might be easier on your hips. The Saatva Rx is great for side sleeping, the Classic is a little too firm imo.
My son is a big guy (6'3" and probably around 250). He needed a bigger sized mattress when his girlfriend moved in so I suggested the Leesa Plus sized Hybrid. We have the original Leesa hybrid mattress and absolutely love it. He took my advice and they both rave about it. He bought the queen size and when they move to a bigger place, they are going to get a King.
We have a Leesa hybrid mattress and love it. My son and his girlfriend have the same thing, except it's the one made for heavier people and they love it too. We were able to test it out at the West Elm store that's in the shopping center across from South Coast Plaza, if that helps
Same, the hybrid. We’ve had it for two years and we’re really happy with it.

Brooklyn Bedding
Signature Hybrid
Durable, comfortable, adjustable firmness; excellent value.

Sleep EZ
Organic Latex Mattress
Highly customizable layers, durable; but extremely heavy.

Helix
Midnight Luxe
Pain relief, side sleeper support; but some find too soft.

Purple
The Purple Mattress
Unique grid feel, cool; but heavy, expensive, polarizing.

Brooklyn Bedding
Aurora Luxe Cooling
Excellent cooling, zoned support for heavier sleepers.

Ranked #1
Novaform - Platinum 16.5" Luxury Hybrid Mattress

Ranked #1
Brooklyn Bedding - Titan Plus Luxe

Ranked #1
Purple - The Purple Mattress

Ranked #1
Sleep EZ - Organic Latex Mattress

Ranked #1
Helix - Midnight Luxe

Ranked #1
Sleep EZ - Organic Latex Mattress