Simmons Beautyrest 800 Series ミディアム ピロートップ フルマットレス - 700810006-1030

The cooling layer actually works—I wake up without that sweaty back feeling even in summer, and the pillow top gives just enough sink without losing support. Still feels brand new after two months of nightly use.

After a few weeks, I can confirm the DualCool Technology actually works—I wake up far less sweaty than with my old mattress. The medium pillow top is just firm enough for back sleep but has that comforting plushness on top.

I was skeptical about the cooling claim, but the DualCool Technology really does keep me from waking up sweaty. The medium firmness is perfect for side sleeping—supportive yet soft enough to relieve pressure points.