Tiami Mattress Review: The Luxury Hybrid From Leesa’s Founders, With Perfect 10 Cooling and Motion Isolation Scores

Tiami’s 12-inch hybrid is engineered for cooling, support and quiet sleep. The organic cotton cover, more than 90% organic cotton, is soft and breathable, helping heat escape rather than trapping it. Beneath it, the Energex comfort layer provides gentle, responsive pushback and cooling, so you feel cushioned without sinking deeply. A memory foam recovery layer adds pressure relief for aches and pains, and free-floating poly foam cubes respond independently to different parts of your body, relieving pressure at the shoulders and hips. The support core uses a double-pocketed coil system with 7-inch, 14-gauge coils, which Tiami says provides 7x more airflow than standard designs while reducing motion transfer. Around the edges, 10-inch perimeter coils create strong edge support, so you can sleep or sit near the edge without feeling like you’ll roll off. One customer said “I can sleep on the edge and never feel like I’m going to fall off.”

Cooling and motion isolation are Tiami’s standout strengths. NapLab gave it perfect 10/10 scores for both, praising its “Perfect 10/10 for cooling, low level so motion transfer, and fast material responsiveness.” Hot sleepers notice the difference. One customer said “I’ve always slept hot. This mattress is so cool,” and another couple said they’re “sleeping so much better and cooler.” For couples, motion isolation can transform sleep quality. One husband said “When my wife gets in or out of bed, I can’t feel a thing,” and another couple praised “Motion isolation is excellent.” That combination makes Tiami ideal for partners with different schedules, restless sleepers and anyone woken by a partner’s movements. Use breathable cotton or linen sheets and a thin, breathable mattress protector to preserve its cooling performance.

NapLab rated Tiami slightly firm, 7 out of 10, with testers scoring it between 6 and 7.5. It has minimal sinkage, about 1.66 inches, creating a “floating” on-top feel rather than a hugging, sink-in sensation. That makes it excellent for back and stomach sleepers who need their hips supported in line with their spine, and for side sleepers who like pushback and minimal sinkage. Customers with back pain are especially enthusiastic. One said it “nearly cured my ever-present back pain,” and another said it “melts away my pains and lower-back stiffness.” But Tiami offers only one firmness, and NapLab cautioned that lighter-weight side sleepers may find the extra support problematic, since they may not sink enough to relieve shoulder and hip pressure. Its low bounce also lowered NapLab’s intimacy score to 7.4. If you prefer a plush, cloud-like mattress, Tiami may feel too firm.

Tiami is a luxury purchase. NapLab lists Twin XL at about $1,292, Full $1,677, Queen $1,957 and King and California King $2,307, while Tiami’s own site has shown the Queen at $2,096.50 on sale from $2,995. Free delivery is included, and you can try it in person at select Design Within Reach Studios, a big advantage for a premium online mattress. Tiami even lets you call a founder directly. Its 100-night trial and 10-year warranty, however, are shorter than many competitors, which offer 365-night trials and lifetime warranties, so read the trial and return terms carefully. Part of every purchase supports sleep-equity programs focused on women’s mental health. For couples, hot sleepers and back pain sufferers who want premium cooling, quiet and support, Tiami offers excellent performance for the price.